Home / 1,247,889,572-1,722,066,559.50-690,960,661.64

Finding the Fourth Proportional to 1,247,889,572, 1,722,066,559.50 and 690,960,661.64

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Solution

The fourth proportional to 1,247,889,572, 1,722,066,559.50 and 690,960,661.64 is: 953,514,057.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,889,572 : 1,722,066,559.50 = 690,960,661.64 : x
  2. Step 2: Convert to fraction form
    1,247,889,572/1,722,066,559.50 = 690,960,661.64/x
  3. Step 3: Cross multiply
    1,247,889,572x = 1,722,066,559.50 × 690,960,661.64
  4. Step 4: Simplify right side
    1,247,889,572x = 1,189,880,249,340,238,336
  5. Step 5: Solve for x
    x = 1,189,880,249,340,238,336/1,247,889,572
  6. Step 6: Final answer
    x = 953,514,057.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.