Home / 72,218,270.39-99,670,612.44-40,440,541.34

Finding the Fourth Proportional to 72,218,270.39, 99,670,612.44 and 40,440,541.34

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Solution

The fourth proportional to 72,218,270.39, 99,670,612.44 and 40,440,541.34 is: 55,813,210.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,218,270.39 : 99,670,612.44 = 40,440,541.34 : x
  2. Step 2: Convert to fraction form
    72,218,270.39/99,670,612.44 = 40,440,541.34/x
  3. Step 3: Cross multiply
    72,218,270.39x = 99,670,612.44 × 40,440,541.34
  4. Step 4: Simplify right side
    72,218,270.39x = 4,030,733,522,936,289
  5. Step 5: Solve for x
    x = 4,030,733,522,936,289/72,218,270.39
  6. Step 6: Final answer
    x = 55,813,210.44

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1.5x scale

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.