Home / 538,801,031.80-808,201,547.70-409,660,868.80

Finding the Fourth Proportional to 538,801,031.80, 808,201,547.70 and 409,660,868.80

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Solution

The fourth proportional to 538,801,031.80, 808,201,547.70 and 409,660,868.80 is: 614,491,303.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,801,031.80 : 808,201,547.70 = 409,660,868.80 : x
  2. Step 2: Convert to fraction form
    538,801,031.80/808,201,547.70 = 409,660,868.80/x
  3. Step 3: Cross multiply
    538,801,031.80x = 808,201,547.70 × 409,660,868.80
  4. Step 4: Simplify right side
    538,801,031.80x = 331,088,548,196,286,656
  5. Step 5: Solve for x
    x = 331,088,548,196,286,656/538,801,031.80
  6. Step 6: Final answer
    x = 614,491,303.20

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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.