Home / 747,339,679.20-1,121,009,518.80-553,629,434.70

Finding the Fourth Proportional to 747,339,679.20, 1,121,009,518.80 and 553,629,434.70

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Solution

The fourth proportional to 747,339,679.20, 1,121,009,518.80 and 553,629,434.70 is: 830,444,152.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,339,679.20 : 1,121,009,518.80 = 553,629,434.70 : x
  2. Step 2: Convert to fraction form
    747,339,679.20/1,121,009,518.80 = 553,629,434.70/x
  3. Step 3: Cross multiply
    747,339,679.20x = 1,121,009,518.80 × 553,629,434.70
  4. Step 4: Simplify right side
    747,339,679.20x = 620,623,866,186,563,072
  5. Step 5: Solve for x
    x = 620,623,866,186,563,072/747,339,679.20
  6. Step 6: Final answer
    x = 830,444,152.05

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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.