Home / 1,018,673,144.80-1,528,009,717.20-291,661,856.80

Finding the Fourth Proportional to 1,018,673,144.80, 1,528,009,717.20 and 291,661,856.80

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Solution

The fourth proportional to 1,018,673,144.80, 1,528,009,717.20 and 291,661,856.80 is: 437,492,785.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,018,673,144.80 : 1,528,009,717.20 = 291,661,856.80 : x
  2. Step 2: Convert to fraction form
    1,018,673,144.80/1,528,009,717.20 = 291,661,856.80/x
  3. Step 3: Cross multiply
    1,018,673,144.80x = 1,528,009,717.20 × 291,661,856.80
  4. Step 4: Simplify right side
    1,018,673,144.80x = 445,662,151,326,994,944
  5. Step 5: Solve for x
    x = 445,662,151,326,994,944/1,018,673,144.80
  6. Step 6: Final answer
    x = 437,492,785.20

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Double scale
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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.