Home / 144,332,280.81-199,182,748.43-81,607,031.42

Finding the Fourth Proportional to 144,332,280.81, 199,182,748.43 and 81,607,031.42

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Solution

The fourth proportional to 144,332,280.81, 199,182,748.43 and 81,607,031.42 is: 112,620,078.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,332,280.81 : 199,182,748.43 = 81,607,031.42 : x
  2. Step 2: Convert to fraction form
    144,332,280.81/199,182,748.43 = 81,607,031.42/x
  3. Step 3: Cross multiply
    144,332,280.81x = 199,182,748.43 × 81,607,031.42
  4. Step 4: Simplify right side
    144,332,280.81x = 16,254,712,808,197,622
  5. Step 5: Solve for x
    x = 16,254,712,808,197,622/144,332,280.81
  6. Step 6: Final answer
    x = 112,620,078.59

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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.