Home / 129,688,225.17-194,532,097.90-42,249,637.77

Finding the Fourth Proportional to 129,688,225.17, 194,532,097.90 and 42,249,637.77

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Solution

The fourth proportional to 129,688,225.17, 194,532,097.90 and 42,249,637.77 is: 63,374,378.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,688,225.17 : 194,532,097.90 = 42,249,637.77 : x
  2. Step 2: Convert to fraction form
    129,688,225.17/194,532,097.90 = 42,249,637.77/x
  3. Step 3: Cross multiply
    129,688,225.17x = 194,532,097.90 × 42,249,637.77
  4. Step 4: Simplify right side
    129,688,225.17x = 8,218,910,670,913,179
  5. Step 5: Solve for x
    x = 8,218,910,670,913,179/129,688,225.17
  6. Step 6: Final answer
    x = 63,374,378.52

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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.