Home / 72,295,742.33-99,770,985.07-40,506,186.14

Finding the Fourth Proportional to 72,295,742.33, 99,770,985.07 and 40,506,186.14

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Solution

The fourth proportional to 72,295,742.33, 99,770,985.07 and 40,506,186.14 is: 55,900,139.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,295,742.33 : 99,770,985.07 = 40,506,186.14 : x
  2. Step 2: Convert to fraction form
    72,295,742.33/99,770,985.07 = 40,506,186.14/x
  3. Step 3: Cross multiply
    72,295,742.33x = 99,770,985.07 × 40,506,186.14
  4. Step 4: Simplify right side
    72,295,742.33x = 4,041,342,092,616,580.50
  5. Step 5: Solve for x
    x = 4,041,342,092,616,580.50/72,295,742.33
  6. Step 6: Final answer
    x = 55,900,139.65

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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.