Home / 74,879,916.30-112,319,874.45-42,519,314.70

Finding the Fourth Proportional to 74,879,916.30, 112,319,874.45 and 42,519,314.70

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Solution

The fourth proportional to 74,879,916.30, 112,319,874.45 and 42,519,314.70 is: 63,778,972.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,879,916.30 : 112,319,874.45 = 42,519,314.70 : x
  2. Step 2: Convert to fraction form
    74,879,916.30/112,319,874.45 = 42,519,314.70/x
  3. Step 3: Cross multiply
    74,879,916.30x = 112,319,874.45 × 42,519,314.70
  4. Step 4: Simplify right side
    74,879,916.30x = 4,775,764,088,804,040
  5. Step 5: Solve for x
    x = 4,775,764,088,804,040/74,879,916.30
  6. Step 6: Final answer
    x = 63,778,972.05

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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.