Home / 78,035,071.06-107,686,988.76-43,227,653.86

Finding the Fourth Proportional to 78,035,071.06, 107,686,988.76 and 43,227,653.86

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Solution

The fourth proportional to 78,035,071.06, 107,686,988.76 and 43,227,653.86 is: 59,653,381.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,035,071.06 : 107,686,988.76 = 43,227,653.86 : x
  2. Step 2: Convert to fraction form
    78,035,071.06/107,686,988.76 = 43,227,653.86/x
  3. Step 3: Cross multiply
    78,035,071.06x = 107,686,988.76 × 43,227,653.86
  4. Step 4: Simplify right side
    78,035,071.06x = 4,655,055,875,342,991
  5. Step 5: Solve for x
    x = 4,655,055,875,342,991/78,035,071.06
  6. Step 6: Final answer
    x = 59,653,381.64

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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.