Home / 1,127,012,630.61-1,555,279,259.88-625,221,427.25

Finding the Fourth Proportional to 1,127,012,630.61, 1,555,279,259.88 and 625,221,427.25

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Solution

The fourth proportional to 1,127,012,630.61, 1,555,279,259.88 and 625,221,427.25 is: 862,806,584.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,127,012,630.61 : 1,555,279,259.88 = 625,221,427.25 : x
  2. Step 2: Convert to fraction form
    1,127,012,630.61/1,555,279,259.88 = 625,221,427.25/x
  3. Step 3: Cross multiply
    1,127,012,630.61x = 1,555,279,259.88 × 625,221,427.25
  4. Step 4: Simplify right side
    1,127,012,630.61x = 972,393,918,640,698,752
  5. Step 5: Solve for x
    x = 972,393,918,640,698,752/1,127,012,630.61
  6. Step 6: Final answer
    x = 862,806,584.62

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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.