Home / 28,265,535.10-42,398,302.65-21,091,081.60

Finding the Fourth Proportional to 28,265,535.10, 42,398,302.65 and 21,091,081.60

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Solution

The fourth proportional to 28,265,535.10, 42,398,302.65 and 21,091,081.60 is: 31,636,622.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,265,535.10 : 42,398,302.65 = 21,091,081.60 : x
  2. Step 2: Convert to fraction form
    28,265,535.10/42,398,302.65 = 21,091,081.60/x
  3. Step 3: Cross multiply
    28,265,535.10x = 42,398,302.65 × 21,091,081.60
  4. Step 4: Simplify right side
    28,265,535.10x = 894,226,060,892,646.25
  5. Step 5: Solve for x
    x = 894,226,060,892,646.25/28,265,535.10
  6. Step 6: Final answer
    x = 31,636,622.40

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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.