Home / 98,654,119.80-147,768,603.30-81,648,007.80

Finding the Fourth Proportional to 98,654,119.80, 147,768,603.30 and 81,648,007.80

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Solution

The fourth proportional to 98,654,119.80, 147,768,603.30 and 81,648,007.80 is: 122,296,079.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,654,119.80 : 147,768,603.30 = 81,648,007.80 : x
  2. Step 2: Convert to fraction form
    98,654,119.80/147,768,603.30 = 81,648,007.80/x
  3. Step 3: Cross multiply
    98,654,119.80x = 147,768,603.30 × 81,648,007.80
  4. Step 4: Simplify right side
    98,654,119.80x = 12,065,012,074,833,506
  5. Step 5: Solve for x
    x = 12,065,012,074,833,506/98,654,119.80
  6. Step 6: Final answer
    x = 122,296,079.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.