Home / 1,042,172,135.60-1,438,222,534.28-565,882,579.18

Finding the Fourth Proportional to 1,042,172,135.60, 1,438,222,534.28 and 565,882,579.18

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Solution

The fourth proportional to 1,042,172,135.60, 1,438,222,534.28 and 565,882,579.18 is: 780,931,526.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,042,172,135.60 : 1,438,222,534.28 = 565,882,579.18 : x
  2. Step 2: Convert to fraction form
    1,042,172,135.60/1,438,222,534.28 = 565,882,579.18/x
  3. Step 3: Cross multiply
    1,042,172,135.60x = 1,438,222,534.28 × 565,882,579.18
  4. Step 4: Simplify right side
    1,042,172,135.60x = 813,865,077,133,162,240
  5. Step 5: Solve for x
    x = 813,865,077,133,162,240/1,042,172,135.60
  6. Step 6: Final answer
    x = 780,931,526.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.