Home / 806,435,556.12-1,209,780,880.02-288,854,537.40

Finding the Fourth Proportional to 806,435,556.12, 1,209,780,880.02 and 288,854,537.40

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Solution

The fourth proportional to 806,435,556.12, 1,209,780,880.02 and 288,854,537.40 is: 433,327,491.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,435,556.12 : 1,209,780,880.02 = 288,854,537.40 : x
  2. Step 2: Convert to fraction form
    806,435,556.12/1,209,780,880.02 = 288,854,537.40/x
  3. Step 3: Cross multiply
    806,435,556.12x = 1,209,780,880.02 × 288,854,537.40
  4. Step 4: Simplify right side
    806,435,556.12x = 349,450,696,453,541,952
  5. Step 5: Solve for x
    x = 349,450,696,453,541,952/806,435,556.12
  6. Step 6: Final answer
    x = 433,327,491.33

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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.