Home / 979,018,664.40-1,465,126,774.20-897,389,326.80

Finding the Fourth Proportional to 979,018,664.40, 1,465,126,774.20 and 897,389,326.80

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Solution

The fourth proportional to 979,018,664.40, 1,465,126,774.20 and 897,389,326.80 is: 1,342,966,357.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,018,664.40 : 1,465,126,774.20 = 897,389,326.80 : x
  2. Step 2: Convert to fraction form
    979,018,664.40/1,465,126,774.20 = 897,389,326.80/x
  3. Step 3: Cross multiply
    979,018,664.40x = 1,465,126,774.20 × 897,389,326.80
  4. Step 4: Simplify right side
    979,018,664.40x = 1,314,789,129,575,993,600
  5. Step 5: Solve for x
    x = 1,314,789,129,575,993,600/979,018,664.40
  6. Step 6: Final answer
    x = 1,342,966,357.42

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1.5x scale

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.