Home / 105,199,246.40-157,686,895.20-40,478,043.20

Finding the Fourth Proportional to 105,199,246.40, 157,686,895.20 and 40,478,043.20

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Solution

The fourth proportional to 105,199,246.40, 157,686,895.20 and 40,478,043.20 is: 60,673,979.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,199,246.40 : 157,686,895.20 = 40,478,043.20 : x
  2. Step 2: Convert to fraction form
    105,199,246.40/157,686,895.20 = 40,478,043.20/x
  3. Step 3: Cross multiply
    105,199,246.40x = 157,686,895.20 × 40,478,043.20
  4. Step 4: Simplify right side
    105,199,246.40x = 6,382,856,955,979,473
  5. Step 5: Solve for x
    x = 6,382,856,955,979,473/105,199,246.40
  6. Step 6: Final answer
    x = 60,673,979.85

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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.