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Finding the Fourth Proportional to 286,654,401.60, 429,981,602.40 and 157,211,995.20

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Solution

The fourth proportional to 286,654,401.60, 429,981,602.40 and 157,211,995.20 is: 235,817,992.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,654,401.60 : 429,981,602.40 = 157,211,995.20 : x
  2. Step 2: Convert to fraction form
    286,654,401.60/429,981,602.40 = 157,211,995.20/x
  3. Step 3: Cross multiply
    286,654,401.60x = 429,981,602.40 × 157,211,995.20
  4. Step 4: Simplify right side
    286,654,401.60x = 67,598,265,612,597,096
  5. Step 5: Solve for x
    x = 67,598,265,612,597,096/286,654,401.60
  6. Step 6: Final answer
    x = 235,817,992.80

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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.