Home / 320,299,359.20-480,449,038.80-266,730,106.40

Finding the Fourth Proportional to 320,299,359.20, 480,449,038.80 and 266,730,106.40

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Solution

The fourth proportional to 320,299,359.20, 480,449,038.80 and 266,730,106.40 is: 400,095,159.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,299,359.20 : 480,449,038.80 = 266,730,106.40 : x
  2. Step 2: Convert to fraction form
    320,299,359.20/480,449,038.80 = 266,730,106.40/x
  3. Step 3: Cross multiply
    320,299,359.20x = 480,449,038.80 × 266,730,106.40
  4. Step 4: Simplify right side
    320,299,359.20x = 128,150,223,238,901,728
  5. Step 5: Solve for x
    x = 128,150,223,238,901,728/320,299,359.20
  6. Step 6: Final answer
    x = 400,095,159.60

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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.