Home / 115,919,615.10-173,879,422.65-87,009,224.70

Finding the Fourth Proportional to 115,919,615.10, 173,879,422.65 and 87,009,224.70

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Solution

The fourth proportional to 115,919,615.10, 173,879,422.65 and 87,009,224.70 is: 130,513,837.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,919,615.10 : 173,879,422.65 = 87,009,224.70 : x
  2. Step 2: Convert to fraction form
    115,919,615.10/173,879,422.65 = 87,009,224.70/x
  3. Step 3: Cross multiply
    115,919,615.10x = 173,879,422.65 × 87,009,224.70
  4. Step 4: Simplify right side
    115,919,615.10x = 15,129,113,756,060,120
  5. Step 5: Solve for x
    x = 15,129,113,756,060,120/115,919,615.10
  6. Step 6: Final answer
    x = 130,513,837.05

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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.