Home / 209,012,475.04-313,343,336.88-92,409,005.20

Finding the Fourth Proportional to 209,012,475.04, 313,343,336.88 and 92,409,005.20

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Solution

The fourth proportional to 209,012,475.04, 313,343,336.88 and 92,409,005.20 is: 138,535,970.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,012,475.04 : 313,343,336.88 = 92,409,005.20 : x
  2. Step 2: Convert to fraction form
    209,012,475.04/313,343,336.88 = 92,409,005.20/x
  3. Step 3: Cross multiply
    209,012,475.04x = 313,343,336.88 × 92,409,005.20
  4. Step 4: Simplify right side
    209,012,475.04x = 28,955,746,047,129,272
  5. Step 5: Solve for x
    x = 28,955,746,047,129,272/209,012,475.04
  6. Step 6: Final answer
    x = 138,535,970.36

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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.