Home / 558,736,650.18-770,934,973.05-338,774,138.82

Finding the Fourth Proportional to 558,736,650.18, 770,934,973.05 and 338,774,138.82

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Solution

The fourth proportional to 558,736,650.18, 770,934,973.05 and 338,774,138.82 is: 467,434,580.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,736,650.18 : 770,934,973.05 = 338,774,138.82 : x
  2. Step 2: Convert to fraction form
    558,736,650.18/770,934,973.05 = 338,774,138.82/x
  3. Step 3: Cross multiply
    558,736,650.18x = 770,934,973.05 × 338,774,138.82
  4. Step 4: Simplify right side
    558,736,650.18x = 261,172,831,581,233,632
  5. Step 5: Solve for x
    x = 261,172,831,581,233,632/558,736,650.18
  6. Step 6: Final answer
    x = 467,434,580.31

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Double scale
Find fourth proportional to 558,736,651.18, 770,934,974.43 and 338,774,139.82
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1.5x scale

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.