Home / 28,088,746.20-42,164,612.10-21,727,200.60

Finding the Fourth Proportional to 28,088,746.20, 42,164,612.10 and 21,727,200.60

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Solution

The fourth proportional to 28,088,746.20, 42,164,612.10 and 21,727,200.60 is: 32,615,161.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,088,746.20 : 42,164,612.10 = 21,727,200.60 : x
  2. Step 2: Convert to fraction form
    28,088,746.20/42,164,612.10 = 21,727,200.60/x
  3. Step 3: Cross multiply
    28,088,746.20x = 42,164,612.10 × 21,727,200.60
  4. Step 4: Simplify right side
    28,088,746.20x = 916,118,985,317,887.38
  5. Step 5: Solve for x
    x = 916,118,985,317,887.38/28,088,746.20
  6. Step 6: Final answer
    x = 32,615,161.20

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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.