Home / 485,960,988.57-670,625,730.87-274,312,368.64

Finding the Fourth Proportional to 485,960,988.57, 670,625,730.87 and 274,312,368.64

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Solution

The fourth proportional to 485,960,988.57, 670,625,730.87 and 274,312,368.64 is: 378,550,824.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,960,988.57 : 670,625,730.87 = 274,312,368.64 : x
  2. Step 2: Convert to fraction form
    485,960,988.57/670,625,730.87 = 274,312,368.64/x
  3. Step 3: Cross multiply
    485,960,988.57x = 670,625,730.87 × 274,312,368.64
  4. Step 4: Simplify right side
    485,960,988.57x = 183,960,932,705,880,864
  5. Step 5: Solve for x
    x = 183,960,932,705,880,864/485,960,988.57
  6. Step 6: Final answer
    x = 378,550,824.10

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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.