Home / 870,129,395.20-1,303,280,905.20-755,338,139.20

Finding the Fourth Proportional to 870,129,395.20, 1,303,280,905.20 and 755,338,139.20

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Solution

The fourth proportional to 870,129,395.20, 1,303,280,905.20 and 755,338,139.20 is: 1,131,346,417.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,129,395.20 : 1,303,280,905.20 = 755,338,139.20 : x
  2. Step 2: Convert to fraction form
    870,129,395.20/1,303,280,905.20 = 755,338,139.20/x
  3. Step 3: Cross multiply
    870,129,395.20x = 1,303,280,905.20 × 755,338,139.20
  4. Step 4: Simplify right side
    870,129,395.20x = 984,417,773,788,659,712
  5. Step 5: Solve for x
    x = 984,417,773,788,659,712/870,129,395.20
  6. Step 6: Final answer
    x = 1,131,346,417.23

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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.