Home / 15,634,378.42-21,575,444.29-8,665,505.40

Finding the Fourth Proportional to 15,634,378.42, 21,575,444.29 and 8,665,505.40

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Solution

The fourth proportional to 15,634,378.42, 21,575,444.29 and 8,665,505.40 is: 11,958,398.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,634,378.42 : 21,575,444.29 = 8,665,505.40 : x
  2. Step 2: Convert to fraction form
    15,634,378.42/21,575,444.29 = 8,665,505.40/x
  3. Step 3: Cross multiply
    15,634,378.42x = 21,575,444.29 × 8,665,505.40
  4. Step 4: Simplify right side
    15,634,378.42x = 186,962,128,989,019.91
  5. Step 5: Solve for x
    x = 186,962,128,989,019.91/15,634,378.42
  6. Step 6: Final answer
    x = 11,958,398.60

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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.