Home / 646,605,806.90-969,908,710.35-442,532,462.90

Finding the Fourth Proportional to 646,605,806.90, 969,908,710.35 and 442,532,462.90

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Solution

The fourth proportional to 646,605,806.90, 969,908,710.35 and 442,532,462.90 is: 663,798,694.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,605,806.90 : 969,908,710.35 = 442,532,462.90 : x
  2. Step 2: Convert to fraction form
    646,605,806.90/969,908,710.35 = 442,532,462.90/x
  3. Step 3: Cross multiply
    646,605,806.90x = 969,908,710.35 × 442,532,462.90
  4. Step 4: Simplify right side
    646,605,806.90x = 429,216,090,379,348,224
  5. Step 5: Solve for x
    x = 429,216,090,379,348,224/646,605,806.90
  6. Step 6: Final answer
    x = 663,798,694.35

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Double scale
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Similar ratio
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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.