Home / 144,884,206.48-199,941,647.40-78,806,242

Finding the Fourth Proportional to 144,884,206.48, 199,941,647.40 and 78,806,242

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Solution

The fourth proportional to 144,884,206.48, 199,941,647.40 and 78,806,242 is: 108,753,398.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,884,206.48 : 199,941,647.40 = 78,806,242 : x
  2. Step 2: Convert to fraction form
    144,884,206.48/199,941,647.40 = 78,806,242/x
  3. Step 3: Cross multiply
    144,884,206.48x = 199,941,647.40 × 78,806,242
  4. Step 4: Simplify right side
    144,884,206.48x = 15,756,649,850,883,072
  5. Step 5: Solve for x
    x = 15,756,649,850,883,072/144,884,206.48
  6. Step 6: Final answer
    x = 108,753,398.55

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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.