Home / 718,890,638,229.70-992,100,265,714.86-398,106,473,337.67

Finding the Fourth Proportional to 718,890,638,229.70, 992,100,265,714.86 and 398,106,473,337.67

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Solution

The fourth proportional to 718,890,638,229.70, 992,100,265,714.86 and 398,106,473,337.67 is: 549,404,202,777.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,890,638,229.70 : 992,100,265,714.86 = 398,106,473,337.67 : x
  2. Step 2: Convert to fraction form
    718,890,638,229.70/992,100,265,714.86 = 398,106,473,337.67/x
  3. Step 3: Cross multiply
    718,890,638,229.70x = 992,100,265,714.86 × 398,106,473,337.67
  4. Step 4: Simplify right side
    718,890,638,229.70x = 394,961,537,981,108,220,592,128
  5. Step 5: Solve for x
    x = 394,961,537,981,108,220,592,128/718,890,638,229.70
  6. Step 6: Final answer
    x = 549,404,202,777.93

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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.