Home / 13,291,931.25-18,342,411.62-7,331,574.24

Finding the Fourth Proportional to 13,291,931.25, 18,342,411.62 and 7,331,574.24

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Solution

The fourth proportional to 13,291,931.25, 18,342,411.62 and 7,331,574.24 is: 10,117,322.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,291,931.25 : 18,342,411.62 = 7,331,574.24 : x
  2. Step 2: Convert to fraction form
    13,291,931.25/18,342,411.62 = 7,331,574.24/x
  3. Step 3: Cross multiply
    13,291,931.25x = 18,342,411.62 × 7,331,574.24
  4. Step 4: Simplify right side
    13,291,931.25x = 134,478,752,496,010.80
  5. Step 5: Solve for x
    x = 134,478,752,496,010.80/13,291,931.25
  6. Step 6: Final answer
    x = 10,117,322.30

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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.