Home / 28,381,335.40-42,572,003.10-8,187,236.20

Finding the Fourth Proportional to 28,381,335.40, 42,572,003.10 and 8,187,236.20

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Solution

The fourth proportional to 28,381,335.40, 42,572,003.10 and 8,187,236.20 is: 12,280,854.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,381,335.40 : 42,572,003.10 = 8,187,236.20 : x
  2. Step 2: Convert to fraction form
    28,381,335.40/42,572,003.10 = 8,187,236.20/x
  3. Step 3: Cross multiply
    28,381,335.40x = 42,572,003.10 × 8,187,236.20
  4. Step 4: Simplify right side
    28,381,335.40x = 348,547,044,886,832.25
  5. Step 5: Solve for x
    x = 348,547,044,886,832.25/28,381,335.40
  6. Step 6: Final answer
    x = 12,280,854.30

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1.5x scale

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.