Home / 100,218,852-138,299,663.52-58,968,416.16

Finding the Fourth Proportional to 100,218,852, 138,299,663.52 and 58,968,416.16

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Solution

The fourth proportional to 100,218,852, 138,299,663.52 and 58,968,416.16 is: 81,375,030.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,218,852 : 138,299,663.52 = 58,968,416.16 : x
  2. Step 2: Convert to fraction form
    100,218,852/138,299,663.52 = 58,968,416.16/x
  3. Step 3: Cross multiply
    100,218,852x = 138,299,663.52 × 58,968,416.16
  4. Step 4: Simplify right side
    100,218,852x = 8,155,312,113,235,331
  5. Step 5: Solve for x
    x = 8,155,312,113,235,331/100,218,852
  6. Step 6: Final answer
    x = 81,375,030.25

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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.