Home / 52,165,905.20-78,248,857.80-15,779,911.40

Finding the Fourth Proportional to 52,165,905.20, 78,248,857.80 and 15,779,911.40

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Solution

The fourth proportional to 52,165,905.20, 78,248,857.80 and 15,779,911.40 is: 23,669,867.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,165,905.20 : 78,248,857.80 = 15,779,911.40 : x
  2. Step 2: Convert to fraction form
    52,165,905.20/78,248,857.80 = 15,779,911.40/x
  3. Step 3: Cross multiply
    52,165,905.20x = 78,248,857.80 × 15,779,911.40
  4. Step 4: Simplify right side
    52,165,905.20x = 1,234,760,043,235,199
  5. Step 5: Solve for x
    x = 1,234,760,043,235,199/52,165,905.20
  6. Step 6: Final answer
    x = 23,669,867.10

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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.