Home / 747,345,628.80-1,121,018,443.20-436,133,779.20

Finding the Fourth Proportional to 747,345,628.80, 1,121,018,443.20 and 436,133,779.20

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Solution

The fourth proportional to 747,345,628.80, 1,121,018,443.20 and 436,133,779.20 is: 654,200,668.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,345,628.80 : 1,121,018,443.20 = 436,133,779.20 : x
  2. Step 2: Convert to fraction form
    747,345,628.80/1,121,018,443.20 = 436,133,779.20/x
  3. Step 3: Cross multiply
    747,345,628.80x = 1,121,018,443.20 × 436,133,779.20
  4. Step 4: Simplify right side
    747,345,628.80x = 488,914,010,185,716,544
  5. Step 5: Solve for x
    x = 488,914,010,185,716,544/747,345,628.80
  6. Step 6: Final answer
    x = 654,200,668.80

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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.