Home / 163,376,999.70-245,065,499.55-86,660,538.90

Finding the Fourth Proportional to 163,376,999.70, 245,065,499.55 and 86,660,538.90

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Solution

The fourth proportional to 163,376,999.70, 245,065,499.55 and 86,660,538.90 is: 129,990,808.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,376,999.70 : 245,065,499.55 = 86,660,538.90 : x
  2. Step 2: Convert to fraction form
    163,376,999.70/245,065,499.55 = 86,660,538.90/x
  3. Step 3: Cross multiply
    163,376,999.70x = 245,065,499.55 × 86,660,538.90
  4. Step 4: Simplify right side
    163,376,999.70x = 21,237,508,256,800,708
  5. Step 5: Solve for x
    x = 21,237,508,256,800,708/163,376,999.70
  6. Step 6: Final answer
    x = 129,990,808.35

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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.