Home / 12,854,646.25-19,281,746.05-5,178,094.86

Finding the Fourth Proportional to 12,854,646.25, 19,281,746.05 and 5,178,094.86

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Solution

The fourth proportional to 12,854,646.25, 19,281,746.05 and 5,178,094.86 is: 7,767,052.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,854,646.25 : 19,281,746.05 = 5,178,094.86 : x
  2. Step 2: Convert to fraction form
    12,854,646.25/19,281,746.05 = 5,178,094.86/x
  3. Step 3: Cross multiply
    12,854,646.25x = 19,281,746.05 × 5,178,094.86
  4. Step 4: Simplify right side
    12,854,646.25x = 99,842,710,010,001.88
  5. Step 5: Solve for x
    x = 99,842,710,010,001.88/12,854,646.25
  6. Step 6: Final answer
    x = 7,767,052.32

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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.