Home / 724,618,005.60-1,086,927,008.40-612,377,666.40

Finding the Fourth Proportional to 724,618,005.60, 1,086,927,008.40 and 612,377,666.40

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Solution

The fourth proportional to 724,618,005.60, 1,086,927,008.40 and 612,377,666.40 is: 918,566,499.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,618,005.60 : 1,086,927,008.40 = 612,377,666.40 : x
  2. Step 2: Convert to fraction form
    724,618,005.60/1,086,927,008.40 = 612,377,666.40/x
  3. Step 3: Cross multiply
    724,618,005.60x = 1,086,927,008.40 × 612,377,666.40
  4. Step 4: Simplify right side
    724,618,005.60x = 665,609,824,951,125,248
  5. Step 5: Solve for x
    x = 665,609,824,951,125,248/724,618,005.60
  6. Step 6: Final answer
    x = 918,566,499.60

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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.