Home / 886,465,711.80-1,329,698,567.70-272,970,221.40

Finding the Fourth Proportional to 886,465,711.80, 1,329,698,567.70 and 272,970,221.40

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Solution

The fourth proportional to 886,465,711.80, 1,329,698,567.70 and 272,970,221.40 is: 409,455,332.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,465,711.80 : 1,329,698,567.70 = 272,970,221.40 : x
  2. Step 2: Convert to fraction form
    886,465,711.80/1,329,698,567.70 = 272,970,221.40/x
  3. Step 3: Cross multiply
    886,465,711.80x = 1,329,698,567.70 × 272,970,221.40
  4. Step 4: Simplify right side
    886,465,711.80x = 362,968,112,420,331,840
  5. Step 5: Solve for x
    x = 362,968,112,420,331,840/886,465,711.80
  6. Step 6: Final answer
    x = 409,455,332.10

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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.