Home / 1,319,372,325.81-1,819,897,134.54-810,512,363.25

Finding the Fourth Proportional to 1,319,372,325.81, 1,819,897,134.54 and 810,512,363.25

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Solution

The fourth proportional to 1,319,372,325.81, 1,819,897,134.54 and 810,512,363.25 is: 1,117,993,077.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,372,325.81 : 1,819,897,134.54 = 810,512,363.25 : x
  2. Step 2: Convert to fraction form
    1,319,372,325.81/1,819,897,134.54 = 810,512,363.25/x
  3. Step 3: Cross multiply
    1,319,372,325.81x = 1,819,897,134.54 × 810,512,363.25
  4. Step 4: Simplify right side
    1,319,372,325.81x = 1,475,049,127,387,918,592
  5. Step 5: Solve for x
    x = 1,475,049,127,387,918,592/1,319,372,325.81
  6. Step 6: Final answer
    x = 1,117,993,077.87

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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.