Home / 1,269,584,490.80-1,904,376,736.20-349,602,820.40

Finding the Fourth Proportional to 1,269,584,490.80, 1,904,376,736.20 and 349,602,820.40

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Solution

The fourth proportional to 1,269,584,490.80, 1,904,376,736.20 and 349,602,820.40 is: 524,404,230.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,269,584,490.80 : 1,904,376,736.20 = 349,602,820.40 : x
  2. Step 2: Convert to fraction form
    1,269,584,490.80/1,904,376,736.20 = 349,602,820.40/x
  3. Step 3: Cross multiply
    1,269,584,490.80x = 1,904,376,736.20 × 349,602,820.40
  4. Step 4: Simplify right side
    1,269,584,490.80x = 665,775,478,079,666,688
  5. Step 5: Solve for x
    x = 665,775,478,079,666,688/1,269,584,490.80
  6. Step 6: Final answer
    x = 524,404,230.60

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.