Home / 1,915,221,233.78-2,872,953,223.35-809,620,038.02

Finding the Fourth Proportional to 1,915,221,233.78, 2,872,953,223.35 and 809,620,038.02

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Solution

The fourth proportional to 1,915,221,233.78, 2,872,953,223.35 and 809,620,038.02 is: 1,214,481,364.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,915,221,233.78 : 2,872,953,223.35 = 809,620,038.02 : x
  2. Step 2: Convert to fraction form
    1,915,221,233.78/2,872,953,223.35 = 809,620,038.02/x
  3. Step 3: Cross multiply
    1,915,221,233.78x = 2,872,953,223.35 × 809,620,038.02
  4. Step 4: Simplify right side
    1,915,221,233.78x = 2,326,000,497,918,308,352
  5. Step 5: Solve for x
    x = 2,326,000,497,918,308,352/1,915,221,233.78
  6. Step 6: Final answer
    x = 1,214,481,364.81

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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.