Home / 3,078,877,867.72-4,249,016,430.78-1,722,430,851.62

Finding the Fourth Proportional to 3,078,877,867.72, 4,249,016,430.78 and 1,722,430,851.62

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Solution

The fourth proportional to 3,078,877,867.72, 4,249,016,430.78 and 1,722,430,851.62 is: 2,377,046,867.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,078,877,867.72 : 4,249,016,430.78 = 1,722,430,851.62 : x
  2. Step 2: Convert to fraction form
    3,078,877,867.72/4,249,016,430.78 = 1,722,430,851.62/x
  3. Step 3: Cross multiply
    3,078,877,867.72x = 4,249,016,430.78 × 1,722,430,851.62
  4. Step 4: Simplify right side
    3,078,877,867.72x = 7,318,636,989,426,391,040
  5. Step 5: Solve for x
    x = 7,318,636,989,426,391,040/3,078,877,867.72
  6. Step 6: Final answer
    x = 2,377,046,867.03

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1.5x scale

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.