Home / 140,490,149.96-193,871,541.84-77,768,983.76

Finding the Fourth Proportional to 140,490,149.96, 193,871,541.84 and 77,768,983.76

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Solution

The fourth proportional to 140,490,149.96, 193,871,541.84 and 77,768,983.76 is: 107,318,504.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,490,149.96 : 193,871,541.84 = 77,768,983.76 : x
  2. Step 2: Convert to fraction form
    140,490,149.96/193,871,541.84 = 77,768,983.76/x
  3. Step 3: Cross multiply
    140,490,149.96x = 193,871,541.84 × 77,768,983.76
  4. Step 4: Simplify right side
    140,490,149.96x = 15,077,192,788,881,122
  5. Step 5: Solve for x
    x = 15,077,192,788,881,122/140,490,149.96
  6. Step 6: Final answer
    x = 107,318,504.49

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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.