Home / 686,087,507,142.38-948,159,211,598.70-562,293,391,445.52

Finding the Fourth Proportional to 686,087,507,142.38, 948,159,211,598.70 and 562,293,391,445.52

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Solution

The fourth proportional to 686,087,507,142.38, 948,159,211,598.70 and 562,293,391,445.52 is: 777,078,219,862.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,087,507,142.38 : 948,159,211,598.70 = 562,293,391,445.52 : x
  2. Step 2: Convert to fraction form
    686,087,507,142.38/948,159,211,598.70 = 562,293,391,445.52/x
  3. Step 3: Cross multiply
    686,087,507,142.38x = 948,159,211,598.70 × 562,293,391,445.52
  4. Step 4: Simplify right side
    686,087,507,142.38x = 533,143,658,720,143,437,987,840
  5. Step 5: Solve for x
    x = 533,143,658,720,143,437,987,840/686,087,507,142.38
  6. Step 6: Final answer
    x = 777,078,219,862.56

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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.