Home / 724,042,821.20-1,086,064,231.80-433,805,176.40

Finding the Fourth Proportional to 724,042,821.20, 1,086,064,231.80 and 433,805,176.40

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Solution

The fourth proportional to 724,042,821.20, 1,086,064,231.80 and 433,805,176.40 is: 650,707,764.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,042,821.20 : 1,086,064,231.80 = 433,805,176.40 : x
  2. Step 2: Convert to fraction form
    724,042,821.20/1,086,064,231.80 = 433,805,176.40/x
  3. Step 3: Cross multiply
    724,042,821.20x = 1,086,064,231.80 × 433,805,176.40
  4. Step 4: Simplify right side
    724,042,821.20x = 471,140,285,657,729,472
  5. Step 5: Solve for x
    x = 471,140,285,657,729,472/724,042,821.20
  6. Step 6: Final answer
    x = 650,707,764.60

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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.