Home / 12,710,577.20-19,058,867.40-5,128,977.20

Finding the Fourth Proportional to 12,710,577.20, 19,058,867.40 and 5,128,977.20

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Solution

The fourth proportional to 12,710,577.20, 19,058,867.40 and 5,128,977.20 is: 7,690,641.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,710,577.20 : 19,058,867.40 = 5,128,977.20 : x
  2. Step 2: Convert to fraction form
    12,710,577.20/19,058,867.40 = 5,128,977.20/x
  3. Step 3: Cross multiply
    12,710,577.20x = 19,058,867.40 × 5,128,977.20
  4. Step 4: Simplify right side
    12,710,577.20x = 97,752,496,352,423.28
  5. Step 5: Solve for x
    x = 97,752,496,352,423.28/12,710,577.20
  6. Step 6: Final answer
    x = 7,690,641.80

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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.