Home / 521,206,775.79-781,906,277.22-171,472,527.15

Finding the Fourth Proportional to 521,206,775.79, 781,906,277.22 and 171,472,527.15

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Solution

The fourth proportional to 521,206,775.79, 781,906,277.22 and 171,472,527.15 is: 257,240,411.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,206,775.79 : 781,906,277.22 = 171,472,527.15 : x
  2. Step 2: Convert to fraction form
    521,206,775.79/781,906,277.22 = 171,472,527.15/x
  3. Step 3: Cross multiply
    521,206,775.79x = 781,906,277.22 × 171,472,527.15
  4. Step 4: Simplify right side
    521,206,775.79x = 134,075,445,349,361,888
  5. Step 5: Solve for x
    x = 134,075,445,349,361,888/521,206,775.79
  6. Step 6: Final answer
    x = 257,240,411.25

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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.