Home / 1,309,334,040.79-1,806,855,364.26-714,622,788.16

Finding the Fourth Proportional to 1,309,334,040.79, 1,806,855,364.26 and 714,622,788.16

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Solution

The fourth proportional to 1,309,334,040.79, 1,806,855,364.26 and 714,622,788.16 is: 986,165,468.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,309,334,040.79 : 1,806,855,364.26 = 714,622,788.16 : x
  2. Step 2: Convert to fraction form
    1,309,334,040.79/1,806,855,364.26 = 714,622,788.16/x
  3. Step 3: Cross multiply
    1,309,334,040.79x = 1,806,855,364.26 × 714,622,788.16
  4. Step 4: Simplify right side
    1,309,334,040.79x = 1,291,220,018,209,333,504
  5. Step 5: Solve for x
    x = 1,291,220,018,209,333,504/1,309,334,040.79
  6. Step 6: Final answer
    x = 986,165,468.84

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Double scale
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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.