Home / 287,468,275.93-431,202,364.65-90,869,698.67

Finding the Fourth Proportional to 287,468,275.93, 431,202,364.65 and 90,869,698.67

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Solution

The fourth proportional to 287,468,275.93, 431,202,364.65 and 90,869,698.67 is: 136,304,532.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,468,275.93 : 431,202,364.65 = 90,869,698.67 : x
  2. Step 2: Convert to fraction form
    287,468,275.93/431,202,364.65 = 90,869,698.67/x
  3. Step 3: Cross multiply
    287,468,275.93x = 431,202,364.65 × 90,869,698.67
  4. Step 4: Simplify right side
    287,468,275.93x = 39,183,228,939,380,952
  5. Step 5: Solve for x
    x = 39,183,228,939,380,952/287,468,275.93
  6. Step 6: Final answer
    x = 136,304,532.43

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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.