Home / 30,207,877.10-45,311,815.65-8,643,182.30

Finding the Fourth Proportional to 30,207,877.10, 45,311,815.65 and 8,643,182.30

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Solution

The fourth proportional to 30,207,877.10, 45,311,815.65 and 8,643,182.30 is: 12,964,773.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,207,877.10 : 45,311,815.65 = 8,643,182.30 : x
  2. Step 2: Convert to fraction form
    30,207,877.10/45,311,815.65 = 8,643,182.30/x
  3. Step 3: Cross multiply
    30,207,877.10x = 45,311,815.65 × 8,643,182.30
  4. Step 4: Simplify right side
    30,207,877.10x = 391,638,283,006,943
  5. Step 5: Solve for x
    x = 391,638,283,006,943/30,207,877.10
  6. Step 6: Final answer
    x = 12,964,773.45

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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.