Home / 199,903,818.48-299,862,365.52-68,744,807.28

Finding the Fourth Proportional to 199,903,818.48, 299,862,365.52 and 68,744,807.28

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Solution

The fourth proportional to 199,903,818.48, 299,862,365.52 and 68,744,807.28 is: 103,119,493.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,903,818.48 : 299,862,365.52 = 68,744,807.28 : x
  2. Step 2: Convert to fraction form
    199,903,818.48/299,862,365.52 = 68,744,807.28/x
  3. Step 3: Cross multiply
    199,903,818.48x = 299,862,365.52 × 68,744,807.28
  4. Step 4: Simplify right side
    199,903,818.48x = 20,613,980,528,197,316
  5. Step 5: Solve for x
    x = 20,613,980,528,197,316/199,903,818.48
  6. Step 6: Final answer
    x = 103,119,493.59

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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.