Home / 28,979,808.60-43,442,064.90-10,779,130.20

Finding the Fourth Proportional to 28,979,808.60, 43,442,064.90 and 10,779,130.20

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Solution

The fourth proportional to 28,979,808.60, 43,442,064.90 and 10,779,130.20 is: 16,158,411.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,979,808.60 : 43,442,064.90 = 10,779,130.20 : x
  2. Step 2: Convert to fraction form
    28,979,808.60/43,442,064.90 = 10,779,130.20/x
  3. Step 3: Cross multiply
    28,979,808.60x = 43,442,064.90 × 10,779,130.20
  4. Step 4: Simplify right side
    28,979,808.60x = 468,267,673,713,949.94
  5. Step 5: Solve for x
    x = 468,267,673,713,949.94/28,979,808.60
  6. Step 6: Final answer
    x = 16,158,411.54

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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.