Home / 78,499,159.03-108,326,910.09-43,216,670.76

Finding the Fourth Proportional to 78,499,159.03, 108,326,910.09 and 43,216,670.76

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Solution

The fourth proportional to 78,499,159.03, 108,326,910.09 and 43,216,670.76 is: 59,637,943.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,499,159.03 : 108,326,910.09 = 43,216,670.76 : x
  2. Step 2: Convert to fraction form
    78,499,159.03/108,326,910.09 = 43,216,670.76/x
  3. Step 3: Cross multiply
    78,499,159.03x = 108,326,910.09 × 43,216,670.76
  4. Step 4: Simplify right side
    78,499,159.03x = 4,681,528,407,807,652
  5. Step 5: Solve for x
    x = 4,681,528,407,807,652/78,499,159.03
  6. Step 6: Final answer
    x = 59,637,943.46

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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.