Home / 289,023,360.50-398,852,622.55-156,864,357.07

Finding the Fourth Proportional to 289,023,360.50, 398,852,622.55 and 156,864,357.07

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Solution

The fourth proportional to 289,023,360.50, 398,852,622.55 and 156,864,357.07 is: 216,473,021.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,023,360.50 : 398,852,622.55 = 156,864,357.07 : x
  2. Step 2: Convert to fraction form
    289,023,360.50/398,852,622.55 = 156,864,357.07/x
  3. Step 3: Cross multiply
    289,023,360.50x = 398,852,622.55 × 156,864,357.07
  4. Step 4: Simplify right side
    289,023,360.50x = 62,565,760,201,188,080
  5. Step 5: Solve for x
    x = 62,565,760,201,188,080/289,023,360.50
  6. Step 6: Final answer
    x = 216,473,021.74

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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.