Home / 86,878,939.80-130,316,417.10-43,736,557.80

Finding the Fourth Proportional to 86,878,939.80, 130,316,417.10 and 43,736,557.80

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Solution

The fourth proportional to 86,878,939.80, 130,316,417.10 and 43,736,557.80 is: 65,603,833.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,878,939.80 : 130,316,417.10 = 43,736,557.80 : x
  2. Step 2: Convert to fraction form
    86,878,939.80/130,316,417.10 = 43,736,557.80/x
  3. Step 3: Cross multiply
    86,878,939.80x = 130,316,417.10 × 43,736,557.80
  4. Step 4: Simplify right side
    86,878,939.80x = 5,699,591,508,783,058
  5. Step 5: Solve for x
    x = 5,699,591,508,783,058/86,878,939.80
  6. Step 6: Final answer
    x = 65,603,833.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.