Home / 879,541,390.80-1,319,461,385.40-266,120,744.40

Finding the Fourth Proportional to 879,541,390.80, 1,319,461,385.40 and 266,120,744.40

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Solution

The fourth proportional to 879,541,390.80, 1,319,461,385.40 and 266,120,744.40 is: 399,226,289.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,541,390.80 : 1,319,461,385.40 = 266,120,744.40 : x
  2. Step 2: Convert to fraction form
    879,541,390.80/1,319,461,385.40 = 266,120,744.40/x
  3. Step 3: Cross multiply
    879,541,390.80x = 1,319,461,385.40 × 266,120,744.40
  4. Step 4: Simplify right side
    879,541,390.80x = 351,136,046,089,703,296
  5. Step 5: Solve for x
    x = 351,136,046,089,703,296/879,541,390.80
  6. Step 6: Final answer
    x = 399,226,289.70

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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.