Home / 11,125,643.60-16,688,465.40-8,603,109.20

Finding the Fourth Proportional to 11,125,643.60, 16,688,465.40 and 8,603,109.20

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Solution

The fourth proportional to 11,125,643.60, 16,688,465.40 and 8,603,109.20 is: 12,904,663.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,125,643.60 : 16,688,465.40 = 8,603,109.20 : x
  2. Step 2: Convert to fraction form
    11,125,643.60/16,688,465.40 = 8,603,109.20/x
  3. Step 3: Cross multiply
    11,125,643.60x = 16,688,465.40 × 8,603,109.20
  4. Step 4: Simplify right side
    11,125,643.60x = 143,572,690,216,621.66
  5. Step 5: Solve for x
    x = 143,572,690,216,621.66/11,125,643.60
  6. Step 6: Final answer
    x = 12,904,663.80

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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.