Home / 1,223,960,143.61-1,689,070,718.10-695,353,135.79

Finding the Fourth Proportional to 1,223,960,143.61, 1,689,070,718.10 and 695,353,135.79

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Solution

The fourth proportional to 1,223,960,143.61, 1,689,070,718.10 and 695,353,135.79 is: 959,590,576.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223,960,143.61 : 1,689,070,718.10 = 695,353,135.79 : x
  2. Step 2: Convert to fraction form
    1,223,960,143.61/1,689,070,718.10 = 695,353,135.79/x
  3. Step 3: Cross multiply
    1,223,960,143.61x = 1,689,070,718.10 × 695,353,135.79
  4. Step 4: Simplify right side
    1,223,960,143.61x = 1,174,500,620,401,902,080
  5. Step 5: Solve for x
    x = 1,174,500,620,401,902,080/1,223,960,143.61
  6. Step 6: Final answer
    x = 959,590,576.98

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1.5x scale

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.