Home / 38,761,492.20-53,493,248.18-21,357,834.60

Finding the Fourth Proportional to 38,761,492.20, 53,493,248.18 and 21,357,834.60

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Solution

The fourth proportional to 38,761,492.20, 53,493,248.18 and 21,357,834.60 is: 29,475,128.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,761,492.20 : 53,493,248.18 = 21,357,834.60 : x
  2. Step 2: Convert to fraction form
    38,761,492.20/53,493,248.18 = 21,357,834.60/x
  3. Step 3: Cross multiply
    38,761,492.20x = 53,493,248.18 × 21,357,834.60
  4. Step 4: Simplify right side
    38,761,492.20x = 1,142,499,946,845,191
  5. Step 5: Solve for x
    x = 1,142,499,946,845,191/38,761,492.20
  6. Step 6: Final answer
    x = 29,475,128.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.