Home / 354,391,438.40-531,487,624.80-112,128,603.20

Finding the Fourth Proportional to 354,391,438.40, 531,487,624.80 and 112,128,603.20

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Solution

The fourth proportional to 354,391,438.40, 531,487,624.80 and 112,128,603.20 is: 168,161,412.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,391,438.40 : 531,487,624.80 = 112,128,603.20 : x
  2. Step 2: Convert to fraction form
    354,391,438.40/531,487,624.80 = 112,128,603.20/x
  3. Step 3: Cross multiply
    354,391,438.40x = 531,487,624.80 × 112,128,603.20
  4. Step 4: Simplify right side
    354,391,438.40x = 59,594,964,986,909,680
  5. Step 5: Solve for x
    x = 59,594,964,986,909,680/354,391,438.40
  6. Step 6: Final answer
    x = 168,161,412.86

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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.