Home / 21,051,400.47-31,532,329.35-10,105,454.09

Finding the Fourth Proportional to 21,051,400.47, 31,532,329.35 and 10,105,454.09

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Solution

The fourth proportional to 21,051,400.47, 31,532,329.35 and 10,105,454.09 is: 15,136,689.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,051,400.47 : 31,532,329.35 = 10,105,454.09 : x
  2. Step 2: Convert to fraction form
    21,051,400.47/31,532,329.35 = 10,105,454.09/x
  3. Step 3: Cross multiply
    21,051,400.47x = 31,532,329.35 × 10,105,454.09
  4. Step 4: Simplify right side
    21,051,400.47x = 318,648,506,439,522.94
  5. Step 5: Solve for x
    x = 318,648,506,439,522.94/21,051,400.47
  6. Step 6: Final answer
    x = 15,136,689.21

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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.