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Finding the Fourth Proportional to 360,332,938.40, 540,499,407.60 and 207,277,930.40

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Solution

The fourth proportional to 360,332,938.40, 540,499,407.60 and 207,277,930.40 is: 310,916,895.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,332,938.40 : 540,499,407.60 = 207,277,930.40 : x
  2. Step 2: Convert to fraction form
    360,332,938.40/540,499,407.60 = 207,277,930.40/x
  3. Step 3: Cross multiply
    360,332,938.40x = 540,499,407.60 × 207,277,930.40
  4. Step 4: Simplify right side
    360,332,938.40x = 112,033,598,589,754,032
  5. Step 5: Solve for x
    x = 112,033,598,589,754,032/360,332,938.40
  6. Step 6: Final answer
    x = 310,916,895.60

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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.