Home / 30,223,293.40-45,335,432.16-8,657,811.28

Finding the Fourth Proportional to 30,223,293.40, 45,335,432.16 and 8,657,811.28

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Solution

The fourth proportional to 30,223,293.40, 45,335,432.16 and 8,657,811.28 is: 12,986,857.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,223,293.40 : 45,335,432.16 = 8,657,811.28 : x
  2. Step 2: Convert to fraction form
    30,223,293.40/45,335,432.16 = 8,657,811.28/x
  3. Step 3: Cross multiply
    30,223,293.40x = 45,335,432.16 × 8,657,811.28
  4. Step 4: Simplify right side
    30,223,293.40x = 392,505,615,938,522.69
  5. Step 5: Solve for x
    x = 392,505,615,938,522.69/30,223,293.40
  6. Step 6: Final answer
    x = 12,986,857.88

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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.