Home / 157,191,083.22-216,918,610.02-90,221,065.68

Finding the Fourth Proportional to 157,191,083.22, 216,918,610.02 and 90,221,065.68

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Solution

The fourth proportional to 157,191,083.22, 216,918,610.02 and 90,221,065.68 is: 124,502,152.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,191,083.22 : 216,918,610.02 = 90,221,065.68 : x
  2. Step 2: Convert to fraction form
    157,191,083.22/216,918,610.02 = 90,221,065.68/x
  3. Step 3: Cross multiply
    157,191,083.22x = 216,918,610.02 × 90,221,065.68
  4. Step 4: Simplify right side
    157,191,083.22x = 19,570,628,161,828,728
  5. Step 5: Solve for x
    x = 19,570,628,161,828,728/157,191,083.22
  6. Step 6: Final answer
    x = 124,502,152.16

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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.