Home / 71,130,308.94-98,158,549.14-40,189,813.92

Finding the Fourth Proportional to 71,130,308.94, 98,158,549.14 and 40,189,813.92

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Solution

The fourth proportional to 71,130,308.94, 98,158,549.14 and 40,189,813.92 is: 55,461,221.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,130,308.94 : 98,158,549.14 = 40,189,813.92 : x
  2. Step 2: Convert to fraction form
    71,130,308.94/98,158,549.14 = 40,189,813.92/x
  3. Step 3: Cross multiply
    71,130,308.94x = 98,158,549.14 × 40,189,813.92
  4. Step 4: Simplify right side
    71,130,308.94x = 3,944,973,824,593,776
  5. Step 5: Solve for x
    x = 3,944,973,824,593,776/71,130,308.94
  6. Step 6: Final answer
    x = 55,461,221.57

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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.