Home / 86,991,088.31-119,936,261.75-71,252,131.40

Finding the Fourth Proportional to 86,991,088.31, 119,936,261.75 and 71,252,131.40

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Solution

The fourth proportional to 86,991,088.31, 119,936,261.75 and 71,252,131.40 is: 98,236,663.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,991,088.31 : 119,936,261.75 = 71,252,131.40 : x
  2. Step 2: Convert to fraction form
    86,991,088.31/119,936,261.75 = 71,252,131.40/x
  3. Step 3: Cross multiply
    86,991,088.31x = 119,936,261.75 × 71,252,131.40
  4. Step 4: Simplify right side
    86,991,088.31x = 8,545,714,280,879,852
  5. Step 5: Solve for x
    x = 8,545,714,280,879,852/86,991,088.31
  6. Step 6: Final answer
    x = 98,236,663.63

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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.