Home / 317,659,616.02-438,380,915.50-176,536,784.51

Finding the Fourth Proportional to 317,659,616.02, 438,380,915.50 and 176,536,784.51

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Solution

The fourth proportional to 317,659,616.02, 438,380,915.50 and 176,536,784.51 is: 243,626,678.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,659,616.02 : 438,380,915.50 = 176,536,784.51 : x
  2. Step 2: Convert to fraction form
    317,659,616.02/438,380,915.50 = 176,536,784.51/x
  3. Step 3: Cross multiply
    317,659,616.02x = 438,380,915.50 × 176,536,784.51
  4. Step 4: Simplify right side
    317,659,616.02x = 77,390,357,214,067,568
  5. Step 5: Solve for x
    x = 77,390,357,214,067,568/317,659,616.02
  6. Step 6: Final answer
    x = 243,626,678.72

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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.