Home / 112,022,990.10-167,938,641.54-42,985,337.76

Finding the Fourth Proportional to 112,022,990.10, 167,938,641.54 and 42,985,337.76

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Solution

The fourth proportional to 112,022,990.10, 167,938,641.54 and 42,985,337.76 is: 64,441,229.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,022,990.10 : 167,938,641.54 = 42,985,337.76 : x
  2. Step 2: Convert to fraction form
    112,022,990.10/167,938,641.54 = 42,985,337.76/x
  3. Step 3: Cross multiply
    112,022,990.10x = 167,938,641.54 × 42,985,337.76
  4. Step 4: Simplify right side
    112,022,990.10x = 7,218,899,229,552,466
  5. Step 5: Solve for x
    x = 7,218,899,229,552,466/112,022,990.10
  6. Step 6: Final answer
    x = 64,441,229.64

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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.