Home / 145,627,404.20-218,441,106.30-77,602,956.20

Finding the Fourth Proportional to 145,627,404.20, 218,441,106.30 and 77,602,956.20

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Solution

The fourth proportional to 145,627,404.20, 218,441,106.30 and 77,602,956.20 is: 116,404,434.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,627,404.20 : 218,441,106.30 = 77,602,956.20 : x
  2. Step 2: Convert to fraction form
    145,627,404.20/218,441,106.30 = 77,602,956.20/x
  3. Step 3: Cross multiply
    145,627,404.20x = 218,441,106.30 × 77,602,956.20
  4. Step 4: Simplify right side
    145,627,404.20x = 16,951,675,604,478,446
  5. Step 5: Solve for x
    x = 16,951,675,604,478,446/145,627,404.20
  6. Step 6: Final answer
    x = 116,404,434.30

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Similar ratio
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1.5x scale

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.