Home / 12,354,053.40-18,505,010.28-9,911,985.12

Finding the Fourth Proportional to 12,354,053.40, 18,505,010.28 and 9,911,985.12

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Solution

The fourth proportional to 12,354,053.40, 18,505,010.28 and 9,911,985.12 is: 14,847,061.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,354,053.40 : 18,505,010.28 = 9,911,985.12 : x
  2. Step 2: Convert to fraction form
    12,354,053.40/18,505,010.28 = 9,911,985.12/x
  3. Step 3: Cross multiply
    12,354,053.40x = 18,505,010.28 × 9,911,985.12
  4. Step 4: Simplify right side
    12,354,053.40x = 183,421,386,540,807.03
  5. Step 5: Solve for x
    x = 183,421,386,540,807.03/12,354,053.40
  6. Step 6: Final answer
    x = 14,847,061.17

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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.