Home / 105,575,999.40-158,363,999.10-53,919,934.20

Finding the Fourth Proportional to 105,575,999.40, 158,363,999.10 and 53,919,934.20

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Solution

The fourth proportional to 105,575,999.40, 158,363,999.10 and 53,919,934.20 is: 80,879,901.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,575,999.40 : 158,363,999.10 = 53,919,934.20 : x
  2. Step 2: Convert to fraction form
    105,575,999.40/158,363,999.10 = 53,919,934.20/x
  3. Step 3: Cross multiply
    105,575,999.40x = 158,363,999.10 × 53,919,934.20
  4. Step 4: Simplify right side
    105,575,999.40x = 8,538,976,411,120,859
  5. Step 5: Solve for x
    x = 8,538,976,411,120,859/105,575,999.40
  6. Step 6: Final answer
    x = 80,879,901.30

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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.