Home / 351,420,123.40-527,130,185.10-260,720,859.40

Finding the Fourth Proportional to 351,420,123.40, 527,130,185.10 and 260,720,859.40

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Solution

The fourth proportional to 351,420,123.40, 527,130,185.10 and 260,720,859.40 is: 391,081,289.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,420,123.40 : 527,130,185.10 = 260,720,859.40 : x
  2. Step 2: Convert to fraction form
    351,420,123.40/527,130,185.10 = 260,720,859.40/x
  3. Step 3: Cross multiply
    351,420,123.40x = 527,130,185.10 × 260,720,859.40
  4. Step 4: Simplify right side
    351,420,123.40x = 137,433,834,874,953,088
  5. Step 5: Solve for x
    x = 137,433,834,874,953,088/351,420,123.40
  6. Step 6: Final answer
    x = 391,081,289.10

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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.