Home / 695,472,031.60-1,043,208,047.40-642,918,713.20

Finding the Fourth Proportional to 695,472,031.60, 1,043,208,047.40 and 642,918,713.20

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Solution

The fourth proportional to 695,472,031.60, 1,043,208,047.40 and 642,918,713.20 is: 964,378,069.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,472,031.60 : 1,043,208,047.40 = 642,918,713.20 : x
  2. Step 2: Convert to fraction form
    695,472,031.60/1,043,208,047.40 = 642,918,713.20/x
  3. Step 3: Cross multiply
    695,472,031.60x = 1,043,208,047.40 × 642,918,713.20
  4. Step 4: Simplify right side
    695,472,031.60x = 670,697,975,434,292,608
  5. Step 5: Solve for x
    x = 670,697,975,434,292,608/695,472,031.60
  6. Step 6: Final answer
    x = 964,378,069.80

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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.