Home / 107,384,196.78-148,186,020.51-65,638,159.40

Finding the Fourth Proportional to 107,384,196.78, 148,186,020.51 and 65,638,159.40

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Solution

The fourth proportional to 107,384,196.78, 148,186,020.51 and 65,638,159.40 is: 90,578,110.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,384,196.78 : 148,186,020.51 = 65,638,159.40 : x
  2. Step 2: Convert to fraction form
    107,384,196.78/148,186,020.51 = 65,638,159.40/x
  3. Step 3: Cross multiply
    107,384,196.78x = 148,186,020.51 × 65,638,159.40
  4. Step 4: Simplify right side
    107,384,196.78x = 9,726,657,635,457,514
  5. Step 5: Solve for x
    x = 9,726,657,635,457,514/107,384,196.78
  6. Step 6: Final answer
    x = 90,578,110.44

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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.