Home / 645,109,079.64-967,663,663.50-257,204,315.04

Finding the Fourth Proportional to 645,109,079.64, 967,663,663.50 and 257,204,315.04

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Solution

The fourth proportional to 645,109,079.64, 967,663,663.50 and 257,204,315.04 is: 385,806,490.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,109,079.64 : 967,663,663.50 = 257,204,315.04 : x
  2. Step 2: Convert to fraction form
    645,109,079.64/967,663,663.50 = 257,204,315.04/x
  3. Step 3: Cross multiply
    645,109,079.64x = 967,663,663.50 × 257,204,315.04
  4. Step 4: Simplify right side
    645,109,079.64x = 248,887,269,759,614,528
  5. Step 5: Solve for x
    x = 248,887,269,759,614,528/645,109,079.64
  6. Step 6: Final answer
    x = 385,806,490.12

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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.