Home / 72,321,449.79-99,804,915.50-40,966,008.98

Finding the Fourth Proportional to 72,321,449.79, 99,804,915.50 and 40,966,008.98

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Solution

The fourth proportional to 72,321,449.79, 99,804,915.50 and 40,966,008.98 is: 56,533,837.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,321,449.79 : 99,804,915.50 = 40,966,008.98 : x
  2. Step 2: Convert to fraction form
    72,321,449.79/99,804,915.50 = 40,966,008.98/x
  3. Step 3: Cross multiply
    72,321,449.79x = 99,804,915.50 × 40,966,008.98
  4. Step 4: Simplify right side
    72,321,449.79x = 4,088,609,064,291,555
  5. Step 5: Solve for x
    x = 4,088,609,064,291,555/72,321,449.79
  6. Step 6: Final answer
    x = 56,533,837.14

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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.