Home / 20,902,464,005.60-31,353,696,008.40-19,306,156,959.20

Finding the Fourth Proportional to 20,902,464,005.60, 31,353,696,008.40 and 19,306,156,959.20

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Solution

The fourth proportional to 20,902,464,005.60, 31,353,696,008.40 and 19,306,156,959.20 is: 28,959,235,438.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,902,464,005.60 : 31,353,696,008.40 = 19,306,156,959.20 : x
  2. Step 2: Convert to fraction form
    20,902,464,005.60/31,353,696,008.40 = 19,306,156,959.20/x
  3. Step 3: Cross multiply
    20,902,464,005.60x = 31,353,696,008.40 × 19,306,156,959.20
  4. Step 4: Simplify right side
    20,902,464,005.60x = 605,319,376,389,212,995,584
  5. Step 5: Solve for x
    x = 605,319,376,389,212,995,584/20,902,464,005.60
  6. Step 6: Final answer
    x = 28,959,235,438.80

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1.5x scale

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.