Home / 14,487,781.60-19,993,021.68-7,872,312.16

Finding the Fourth Proportional to 14,487,781.60, 19,993,021.68 and 7,872,312.16

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Solution

The fourth proportional to 14,487,781.60, 19,993,021.68 and 7,872,312.16 is: 10,863,727.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,487,781.60 : 19,993,021.68 = 7,872,312.16 : x
  2. Step 2: Convert to fraction form
    14,487,781.60/19,993,021.68 = 7,872,312.16/x
  3. Step 3: Cross multiply
    14,487,781.60x = 19,993,021.68 × 7,872,312.16
  4. Step 4: Simplify right side
    14,487,781.60x = 157,391,307,686,607.62
  5. Step 5: Solve for x
    x = 157,391,307,686,607.62/14,487,781.60
  6. Step 6: Final answer
    x = 10,863,727.24

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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.