Home / 15,487,859.04-21,373,764-8,518,831.32

Finding the Fourth Proportional to 15,487,859.04, 21,373,764 and 8,518,831.32

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Solution

The fourth proportional to 15,487,859.04, 21,373,764 and 8,518,831.32 is: 11,756,272.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,487,859.04 : 21,373,764 = 8,518,831.32 : x
  2. Step 2: Convert to fraction form
    15,487,859.04/21,373,764 = 8,518,831.32/x
  3. Step 3: Cross multiply
    15,487,859.04x = 21,373,764 × 8,518,831.32
  4. Step 4: Simplify right side
    15,487,859.04x = 182,079,490,189,488.50
  5. Step 5: Solve for x
    x = 182,079,490,189,488.50/15,487,859.04
  6. Step 6: Final answer
    x = 11,756,272.43

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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.