Home / 141,786,856.80-212,255,132.40-84,249,511.20

Finding the Fourth Proportional to 141,786,856.80, 212,255,132.40 and 84,249,511.20

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Solution

The fourth proportional to 141,786,856.80, 212,255,132.40 and 84,249,511.20 is: 126,121,641.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,786,856.80 : 212,255,132.40 = 84,249,511.20 : x
  2. Step 2: Convert to fraction form
    141,786,856.80/212,255,132.40 = 84,249,511.20/x
  3. Step 3: Cross multiply
    141,786,856.80x = 212,255,132.40 × 84,249,511.20
  4. Step 4: Simplify right side
    141,786,856.80x = 17,882,391,154,391,284
  5. Step 5: Solve for x
    x = 17,882,391,154,391,284/141,786,856.80
  6. Step 6: Final answer
    x = 126,121,641.72

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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.