Home / 143,761,804.80-215,495,740.80-70,866,470.40

Finding the Fourth Proportional to 143,761,804.80, 215,495,740.80 and 70,866,470.40

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Solution

The fourth proportional to 143,761,804.80, 215,495,740.80 and 70,866,470.40 is: 106,227,259.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,761,804.80 : 215,495,740.80 = 70,866,470.40 : x
  2. Step 2: Convert to fraction form
    143,761,804.80/215,495,740.80 = 70,866,470.40/x
  3. Step 3: Cross multiply
    143,761,804.80x = 215,495,740.80 × 70,866,470.40
  4. Step 4: Simplify right side
    143,761,804.80x = 15,271,422,536,729,274
  5. Step 5: Solve for x
    x = 15,271,422,536,729,274/143,761,804.80
  6. Step 6: Final answer
    x = 106,227,259.44

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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.