Home / 560,080,690.65-772,923,725.70-309,184,488.21

Finding the Fourth Proportional to 560,080,690.65, 772,923,725.70 and 309,184,488.21

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Solution

The fourth proportional to 560,080,690.65, 772,923,725.70 and 309,184,488.21 is: 426,681,423.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,080,690.65 : 772,923,725.70 = 309,184,488.21 : x
  2. Step 2: Convert to fraction form
    560,080,690.65/772,923,725.70 = 309,184,488.21/x
  3. Step 3: Cross multiply
    560,080,690.65x = 772,923,725.70 × 309,184,488.21
  4. Step 4: Simplify right side
    560,080,690.65x = 238,976,026,555,920,928
  5. Step 5: Solve for x
    x = 238,976,026,555,920,928/560,080,690.65
  6. Step 6: Final answer
    x = 426,681,423.85

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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.