Home / 290,475,344.80-435,209,132.40-188,186,730.40

Finding the Fourth Proportional to 290,475,344.80, 435,209,132.40 and 188,186,730.40

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Solution

The fourth proportional to 290,475,344.80, 435,209,132.40 and 188,186,730.40 is: 281,953,649.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,475,344.80 : 435,209,132.40 = 188,186,730.40 : x
  2. Step 2: Convert to fraction form
    290,475,344.80/435,209,132.40 = 188,186,730.40/x
  3. Step 3: Cross multiply
    290,475,344.80x = 435,209,132.40 × 188,186,730.40
  4. Step 4: Simplify right side
    290,475,344.80x = 81,900,583,666,576,704
  5. Step 5: Solve for x
    x = 81,900,583,666,576,704/290,475,344.80
  6. Step 6: Final answer
    x = 281,953,649.88

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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.