Home / 72,295,735.66-99,770,975.87-40,506,179.47

Finding the Fourth Proportional to 72,295,735.66, 99,770,975.87 and 40,506,179.47

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Solution

The fourth proportional to 72,295,735.66, 99,770,975.87 and 40,506,179.47 is: 55,900,130.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,295,735.66 : 99,770,975.87 = 40,506,179.47 : x
  2. Step 2: Convert to fraction form
    72,295,735.66/99,770,975.87 = 40,506,179.47/x
  3. Step 3: Cross multiply
    72,295,735.66x = 99,770,975.87 × 40,506,179.47
  4. Step 4: Simplify right side
    72,295,735.66x = 4,041,341,054,962,145
  5. Step 5: Solve for x
    x = 4,041,341,054,962,145/72,295,735.66
  6. Step 6: Final answer
    x = 55,900,130.45

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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.