Home / 885,120,687.20-1,328,688,800.40-521,819,746.40

Finding the Fourth Proportional to 885,120,687.20, 1,328,688,800.40 and 521,819,746.40

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Solution

The fourth proportional to 885,120,687.20, 1,328,688,800.40 and 521,819,746.40 is: 783,323,746.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,120,687.20 : 1,328,688,800.40 = 521,819,746.40 : x
  2. Step 2: Convert to fraction form
    885,120,687.20/1,328,688,800.40 = 521,819,746.40/x
  3. Step 3: Cross multiply
    885,120,687.20x = 1,328,688,800.40 × 521,819,746.40
  4. Step 4: Simplify right side
    885,120,687.20x = 693,336,052,869,248,256
  5. Step 5: Solve for x
    x = 693,336,052,869,248,256/885,120,687.20
  6. Step 6: Final answer
    x = 783,323,746.58

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1.5x scale

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.