Home / 118,412,201.34-163,400,542.38-68,849,058.78

Finding the Fourth Proportional to 118,412,201.34, 163,400,542.38 and 68,849,058.78

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Solution

The fourth proportional to 118,412,201.34, 163,400,542.38 and 68,849,058.78 is: 95,006,877.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,412,201.34 : 163,400,542.38 = 68,849,058.78 : x
  2. Step 2: Convert to fraction form
    118,412,201.34/163,400,542.38 = 68,849,058.78/x
  3. Step 3: Cross multiply
    118,412,201.34x = 163,400,542.38 × 68,849,058.78
  4. Step 4: Simplify right side
    118,412,201.34x = 11,249,973,547,004,500
  5. Step 5: Solve for x
    x = 11,249,973,547,004,500/118,412,201.34
  6. Step 6: Final answer
    x = 95,006,877.84

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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.