Home / 216,923,444.22-299,397,802.59-128,866,360.53

Finding the Fourth Proportional to 216,923,444.22, 299,397,802.59 and 128,866,360.53

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Solution

The fourth proportional to 216,923,444.22, 299,397,802.59 and 128,866,360.53 is: 177,861,389.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,923,444.22 : 299,397,802.59 = 128,866,360.53 : x
  2. Step 2: Convert to fraction form
    216,923,444.22/299,397,802.59 = 128,866,360.53/x
  3. Step 3: Cross multiply
    216,923,444.22x = 299,397,802.59 × 128,866,360.53
  4. Step 4: Simplify right side
    216,923,444.22x = 38,582,305,170,452,704
  5. Step 5: Solve for x
    x = 38,582,305,170,452,704/216,923,444.22
  6. Step 6: Final answer
    x = 177,861,389.34

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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.