Home / 72,666,422.40-109,020,672.68-21,549,671.40

Finding the Fourth Proportional to 72,666,422.40, 109,020,672.68 and 21,549,671.40

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Solution

The fourth proportional to 72,666,422.40, 109,020,672.68 and 21,549,671.40 is: 32,330,746.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,666,422.40 : 109,020,672.68 = 21,549,671.40 : x
  2. Step 2: Convert to fraction form
    72,666,422.40/109,020,672.68 = 21,549,671.40/x
  3. Step 3: Cross multiply
    72,666,422.40x = 109,020,672.68 × 21,549,671.40
  4. Step 4: Simplify right side
    72,666,422.40x = 2,349,359,672,060,957.50
  5. Step 5: Solve for x
    x = 2,349,359,672,060,957.50/72,666,422.40
  6. Step 6: Final answer
    x = 32,330,746.37

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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.