Home / 42,883,221.90-64,318,612.05-12,587,925.90

Finding the Fourth Proportional to 42,883,221.90, 64,318,612.05 and 12,587,925.90

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Solution

The fourth proportional to 42,883,221.90, 64,318,612.05 and 12,587,925.90 is: 18,880,062.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,883,221.90 : 64,318,612.05 = 12,587,925.90 : x
  2. Step 2: Convert to fraction form
    42,883,221.90/64,318,612.05 = 12,587,925.90/x
  3. Step 3: Cross multiply
    42,883,221.90x = 64,318,612.05 × 12,587,925.90
  4. Step 4: Simplify right side
    42,883,221.90x = 809,637,922,476,247.12
  5. Step 5: Solve for x
    x = 809,637,922,476,247.12/42,883,221.90
  6. Step 6: Final answer
    x = 18,880,062.80

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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.