Home / 98,178,281,830.30-135,489,371,882.81-56,975,471,538.34

Finding the Fourth Proportional to 98,178,281,830.30, 135,489,371,882.81 and 56,975,471,538.34

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Solution

The fourth proportional to 98,178,281,830.30, 135,489,371,882.81 and 56,975,471,538.34 is: 78,628,090,729.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,178,281,830.30 : 135,489,371,882.81 = 56,975,471,538.34 : x
  2. Step 2: Convert to fraction form
    98,178,281,830.30/135,489,371,882.81 = 56,975,471,538.34/x
  3. Step 3: Cross multiply
    98,178,281,830.30x = 135,489,371,882.81 × 56,975,471,538.34
  4. Step 4: Simplify right side
    98,178,281,830.30x = 7,719,570,851,456,603,914,240
  5. Step 5: Solve for x
    x = 7,719,570,851,456,603,914,240/98,178,281,830.30
  6. Step 6: Final answer
    x = 78,628,090,729.88

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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.