Home / 291,935,455.92-402,871,996.80-157,973,373.30

Finding the Fourth Proportional to 291,935,455.92, 402,871,996.80 and 157,973,373.30

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Solution

The fourth proportional to 291,935,455.92, 402,871,996.80 and 157,973,373.30 is: 218,003,832.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,935,455.92 : 402,871,996.80 = 157,973,373.30 : x
  2. Step 2: Convert to fraction form
    291,935,455.92/402,871,996.80 = 157,973,373.30/x
  3. Step 3: Cross multiply
    291,935,455.92x = 402,871,996.80 × 157,973,373.30
  4. Step 4: Simplify right side
    291,935,455.92x = 63,643,048,342,602,816
  5. Step 5: Solve for x
    x = 63,643,048,342,602,816/291,935,455.92
  6. Step 6: Final answer
    x = 218,003,832.87

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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.