Home / 131,358,168.47-181,266,496.85-72,617,330.34

Finding the Fourth Proportional to 131,358,168.47, 181,266,496.85 and 72,617,330.34

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Solution

The fourth proportional to 131,358,168.47, 181,266,496.85 and 72,617,330.34 is: 100,207,617.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,358,168.47 : 181,266,496.85 = 72,617,330.34 : x
  2. Step 2: Convert to fraction form
    131,358,168.47/181,266,496.85 = 72,617,330.34/x
  3. Step 3: Cross multiply
    131,358,168.47x = 181,266,496.85 × 72,617,330.34
  4. Step 4: Simplify right side
    131,358,168.47x = 13,163,089,081,512,562
  5. Step 5: Solve for x
    x = 13,163,089,081,512,562/131,358,168.47
  6. Step 6: Final answer
    x = 100,207,617.35

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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.