Home / 1,258,456,466.90-1,887,760,366.29-385,065,402.01

Finding the Fourth Proportional to 1,258,456,466.90, 1,887,760,366.29 and 385,065,402.01

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Solution

The fourth proportional to 1,258,456,466.90, 1,887,760,366.29 and 385,065,402.01 is: 577,621,255.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,258,456,466.90 : 1,887,760,366.29 = 385,065,402.01 : x
  2. Step 2: Convert to fraction form
    1,258,456,466.90/1,887,760,366.29 = 385,065,402.01/x
  3. Step 3: Cross multiply
    1,258,456,466.90x = 1,887,760,366.29 × 385,065,402.01
  4. Step 4: Simplify right side
    1,258,456,466.90x = 726,911,204,339,284,224
  5. Step 5: Solve for x
    x = 726,911,204,339,284,224/1,258,456,466.90
  6. Step 6: Final answer
    x = 577,621,255.45

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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.