Home / 129,688,227.17-194,532,100.89-42,249,639.77

Finding the Fourth Proportional to 129,688,227.17, 194,532,100.89 and 42,249,639.77

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Solution

The fourth proportional to 129,688,227.17, 194,532,100.89 and 42,249,639.77 is: 63,374,381.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,688,227.17 : 194,532,100.89 = 42,249,639.77 : x
  2. Step 2: Convert to fraction form
    129,688,227.17/194,532,100.89 = 42,249,639.77/x
  3. Step 3: Cross multiply
    129,688,227.17x = 194,532,100.89 × 42,249,639.77
  4. Step 4: Simplify right side
    129,688,227.17x = 8,218,911,185,331,135
  5. Step 5: Solve for x
    x = 8,218,911,185,331,135/129,688,227.17
  6. Step 6: Final answer
    x = 63,374,381.51

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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.