Home / 20,980,423,868.52-28,955,938,081.41-13,357,034,599.62

Finding the Fourth Proportional to 20,980,423,868.52, 28,955,938,081.41 and 13,357,034,599.62

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Solution

The fourth proportional to 20,980,423,868.52, 28,955,938,081.41 and 13,357,034,599.62 is: 18,434,587,844.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,980,423,868.52 : 28,955,938,081.41 = 13,357,034,599.62 : x
  2. Step 2: Convert to fraction form
    20,980,423,868.52/28,955,938,081.41 = 13,357,034,599.62/x
  3. Step 3: Cross multiply
    20,980,423,868.52x = 28,955,938,081.41 × 13,357,034,599.62
  4. Step 4: Simplify right side
    20,980,423,868.52x = 386,765,466,817,896,775,680
  5. Step 5: Solve for x
    x = 386,765,466,817,896,775,680/20,980,423,868.52
  6. Step 6: Final answer
    x = 18,434,587,844.44

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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.