Home / 20,902,464,008.60-31,353,696,012.90-19,306,156,962.20

Finding the Fourth Proportional to 20,902,464,008.60, 31,353,696,012.90 and 19,306,156,962.20

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Solution

The fourth proportional to 20,902,464,008.60, 31,353,696,012.90 and 19,306,156,962.20 is: 28,959,235,443.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,902,464,008.60 : 31,353,696,012.90 = 19,306,156,962.20 : x
  2. Step 2: Convert to fraction form
    20,902,464,008.60/31,353,696,012.90 = 19,306,156,962.20/x
  3. Step 3: Cross multiply
    20,902,464,008.60x = 31,353,696,012.90 × 19,306,156,962.20
  4. Step 4: Simplify right side
    20,902,464,008.60x = 605,319,376,570,151,731,200
  5. Step 5: Solve for x
    x = 605,319,376,570,151,731,200/20,902,464,008.60
  6. Step 6: Final answer
    x = 28,959,235,443.30

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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.