Home / 1,377,034,417.56-2,065,550,364.18-431,639,303.88

Finding the Fourth Proportional to 1,377,034,417.56, 2,065,550,364.18 and 431,639,303.88

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Solution

The fourth proportional to 1,377,034,417.56, 2,065,550,364.18 and 431,639,303.88 is: 647,458,560.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,377,034,417.56 : 2,065,550,364.18 = 431,639,303.88 : x
  2. Step 2: Convert to fraction form
    1,377,034,417.56/2,065,550,364.18 = 431,639,303.88/x
  3. Step 3: Cross multiply
    1,377,034,417.56x = 2,065,550,364.18 × 431,639,303.88
  4. Step 4: Simplify right side
    1,377,034,417.56x = 891,572,721,323,735,680
  5. Step 5: Solve for x
    x = 891,572,721,323,735,680/1,377,034,417.56
  6. Step 6: Final answer
    x = 647,458,560.19

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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.