Home / 911,725,240.16-1,258,041,694.21-515,103,514.52

Finding the Fourth Proportional to 911,725,240.16, 1,258,041,694.21 and 515,103,514.52

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Solution

The fourth proportional to 911,725,240.16, 1,258,041,694.21 and 515,103,514.52 is: 710,764,240.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,725,240.16 : 1,258,041,694.21 = 515,103,514.52 : x
  2. Step 2: Convert to fraction form
    911,725,240.16/1,258,041,694.21 = 515,103,514.52/x
  3. Step 3: Cross multiply
    911,725,240.16x = 1,258,041,694.21 × 515,103,514.52
  4. Step 4: Simplify right side
    911,725,240.16x = 648,021,698,092,688,128
  5. Step 5: Solve for x
    x = 648,021,698,092,688,128/911,725,240.16
  6. Step 6: Final answer
    x = 710,764,240.75

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Double scale
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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.