Home / 12,878,048.55-17,767,831.50-7,719,527.91

Finding the Fourth Proportional to 12,878,048.55, 17,767,831.50 and 7,719,527.91

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Solution

The fourth proportional to 12,878,048.55, 17,767,831.50 and 7,719,527.91 is: 10,650,625.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,878,048.55 : 17,767,831.50 = 7,719,527.91 : x
  2. Step 2: Convert to fraction form
    12,878,048.55/17,767,831.50 = 7,719,527.91/x
  3. Step 3: Cross multiply
    12,878,048.55x = 17,767,831.50 × 7,719,527.91
  4. Step 4: Simplify right side
    12,878,048.55x = 137,159,271,164,427.17
  5. Step 5: Solve for x
    x = 137,159,271,164,427.17/12,878,048.55
  6. Step 6: Final answer
    x = 10,650,625.41

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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.