Home / 709,270,154.40-1,063,905,231.60-191,685,986.40

Finding the Fourth Proportional to 709,270,154.40, 1,063,905,231.60 and 191,685,986.40

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Solution

The fourth proportional to 709,270,154.40, 1,063,905,231.60 and 191,685,986.40 is: 287,528,979.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,270,154.40 : 1,063,905,231.60 = 191,685,986.40 : x
  2. Step 2: Convert to fraction form
    709,270,154.40/1,063,905,231.60 = 191,685,986.40/x
  3. Step 3: Cross multiply
    709,270,154.40x = 1,063,905,231.60 × 191,685,986.40
  4. Step 4: Simplify right side
    709,270,154.40x = 203,935,723,755,366,464
  5. Step 5: Solve for x
    x = 203,935,723,755,366,464/709,270,154.40
  6. Step 6: Final answer
    x = 287,528,979.60

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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.