Home / 261,535,041.60-392,386,543.20-115,912,334.40

Finding the Fourth Proportional to 261,535,041.60, 392,386,543.20 and 115,912,334.40

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Solution

The fourth proportional to 261,535,041.60, 392,386,543.20 and 115,912,334.40 is: 173,905,721.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,535,041.60 : 392,386,543.20 = 115,912,334.40 : x
  2. Step 2: Convert to fraction form
    261,535,041.60/392,386,543.20 = 115,912,334.40/x
  3. Step 3: Cross multiply
    261,535,041.60x = 392,386,543.20 × 115,912,334.40
  4. Step 4: Simplify right side
    261,535,041.60x = 45,482,440,209,458,448
  5. Step 5: Solve for x
    x = 45,482,440,209,458,448/261,535,041.60
  6. Step 6: Final answer
    x = 173,905,721.89

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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.