Home / 1,561,931,370.92-2,155,459,378.92-857,095,147.52

Finding the Fourth Proportional to 1,561,931,370.92, 2,155,459,378.92 and 857,095,147.52

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Solution

The fourth proportional to 1,561,931,370.92, 2,155,459,378.92 and 857,095,147.52 is: 1,182,788,058.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,561,931,370.92 : 2,155,459,378.92 = 857,095,147.52 : x
  2. Step 2: Convert to fraction form
    1,561,931,370.92/2,155,459,378.92 = 857,095,147.52/x
  3. Step 3: Cross multiply
    1,561,931,370.92x = 2,155,459,378.92 × 857,095,147.52
  4. Step 4: Simplify right side
    1,561,931,370.92x = 1,847,433,774,348,805,120
  5. Step 5: Solve for x
    x = 1,847,433,774,348,805,120/1,561,931,370.92
  6. Step 6: Final answer
    x = 1,182,788,058.90

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Double scale
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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.