Home / 74,679,879.40-112,019,819.10-70,144,916.20

Finding the Fourth Proportional to 74,679,879.40, 112,019,819.10 and 70,144,916.20

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Solution

The fourth proportional to 74,679,879.40, 112,019,819.10 and 70,144,916.20 is: 105,217,374.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,679,879.40 : 112,019,819.10 = 70,144,916.20 : x
  2. Step 2: Convert to fraction form
    74,679,879.40/112,019,819.10 = 70,144,916.20/x
  3. Step 3: Cross multiply
    74,679,879.40x = 112,019,819.10 × 70,144,916.20
  4. Step 4: Simplify right side
    74,679,879.40x = 7,857,620,823,508,659
  5. Step 5: Solve for x
    x = 7,857,620,823,508,659/74,679,879.40
  6. Step 6: Final answer
    x = 105,217,374.30

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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.