Home / 1,118,016,921.60-1,678,537,036.80-709,870,233.60

Finding the Fourth Proportional to 1,118,016,921.60, 1,678,537,036.80 and 709,870,233.60

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Solution

The fourth proportional to 1,118,016,921.60, 1,678,537,036.80 and 709,870,233.60 is: 1,065,765,155.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,118,016,921.60 : 1,678,537,036.80 = 709,870,233.60 : x
  2. Step 2: Convert to fraction form
    1,118,016,921.60/1,678,537,036.80 = 709,870,233.60/x
  3. Step 3: Cross multiply
    1,118,016,921.60x = 1,678,537,036.80 × 709,870,233.60
  4. Step 4: Simplify right side
    1,118,016,921.60x = 1,191,543,478,419,467,776
  5. Step 5: Solve for x
    x = 1,191,543,478,419,467,776/1,118,016,921.60
  6. Step 6: Final answer
    x = 1,065,765,155.61

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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.