Home / 105,007,820.40-157,464,491.40-40,290,116.40

Finding the Fourth Proportional to 105,007,820.40, 157,464,491.40 and 40,290,116.40

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Solution

The fourth proportional to 105,007,820.40, 157,464,491.40 and 40,290,116.40 is: 60,417,049.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,007,820.40 : 157,464,491.40 = 40,290,116.40 : x
  2. Step 2: Convert to fraction form
    105,007,820.40/157,464,491.40 = 40,290,116.40/x
  3. Step 3: Cross multiply
    105,007,820.40x = 157,464,491.40 × 40,290,116.40
  4. Step 4: Simplify right side
    105,007,820.40x = 6,344,262,687,372,799
  5. Step 5: Solve for x
    x = 6,344,262,687,372,799/105,007,820.40
  6. Step 6: Final answer
    x = 60,417,049.54

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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.