Home / 21,238,681.88-29,311,631.19-12,983,577.01

Finding the Fourth Proportional to 21,238,681.88, 29,311,631.19 and 12,983,577.01

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Solution

The fourth proportional to 21,238,681.88, 29,311,631.19 and 12,983,577.01 is: 17,918,711.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,238,681.88 : 29,311,631.19 = 12,983,577.01 : x
  2. Step 2: Convert to fraction form
    21,238,681.88/29,311,631.19 = 12,983,577.01/x
  3. Step 3: Cross multiply
    21,238,681.88x = 29,311,631.19 × 12,983,577.01
  4. Step 4: Simplify right side
    21,238,681.88x = 380,569,820,770,803.88
  5. Step 5: Solve for x
    x = 380,569,820,770,803.88/21,238,681.88
  6. Step 6: Final answer
    x = 17,918,711.85

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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.