Home / 145,787,931-201,191,543.82-80,602,034.04

Finding the Fourth Proportional to 145,787,931, 201,191,543.82 and 80,602,034.04

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Solution

The fourth proportional to 145,787,931, 201,191,543.82 and 80,602,034.04 is: 111,233,128.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,787,931 : 201,191,543.82 = 80,602,034.04 : x
  2. Step 2: Convert to fraction form
    145,787,931/201,191,543.82 = 80,602,034.04/x
  3. Step 3: Cross multiply
    145,787,931x = 201,191,543.82 × 80,602,034.04
  4. Step 4: Simplify right side
    145,787,931x = 16,216,447,663,539,792
  5. Step 5: Solve for x
    x = 16,216,447,663,539,792/145,787,931
  6. Step 6: Final answer
    x = 111,233,128.51

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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.