Home / 15,146,970,159.42-20,902,417,853.67-8,464,021,639.74

Finding the Fourth Proportional to 15,146,970,159.42, 20,902,417,853.67 and 8,464,021,639.74

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Solution

The fourth proportional to 15,146,970,159.42, 20,902,417,853.67 and 8,464,021,639.74 is: 11,680,125,805.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,146,970,159.42 : 20,902,417,853.67 = 8,464,021,639.74 : x
  2. Step 2: Convert to fraction form
    15,146,970,159.42/20,902,417,853.67 = 8,464,021,639.74/x
  3. Step 3: Cross multiply
    15,146,970,159.42x = 20,902,417,853.67 × 8,464,021,639.74
  4. Step 4: Simplify right side
    15,146,970,159.42x = 176,918,517,036,350,570,496
  5. Step 5: Solve for x
    x = 176,918,517,036,350,570,496/15,146,970,159.42
  6. Step 6: Final answer
    x = 11,680,125,805.64

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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.