Home / 145,473,965.10-218,210,947.65-129,690,167.40

Finding the Fourth Proportional to 145,473,965.10, 218,210,947.65 and 129,690,167.40

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Solution

The fourth proportional to 145,473,965.10, 218,210,947.65 and 129,690,167.40 is: 194,535,251.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,473,965.10 : 218,210,947.65 = 129,690,167.40 : x
  2. Step 2: Convert to fraction form
    145,473,965.10/218,210,947.65 = 129,690,167.40/x
  3. Step 3: Cross multiply
    145,473,965.10x = 218,210,947.65 × 129,690,167.40
  4. Step 4: Simplify right side
    145,473,965.10x = 28,299,814,329,241,140
  5. Step 5: Solve for x
    x = 28,299,814,329,241,140/145,473,965.10
  6. Step 6: Final answer
    x = 194,535,251.10

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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.