Home / 485,444,483.06-670,095,560.28-318,191,518.22

Finding the Fourth Proportional to 485,444,483.06, 670,095,560.28 and 318,191,518.22

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Solution

The fourth proportional to 485,444,483.06, 670,095,560.28 and 318,191,518.22 is: 439,223,703.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,444,483.06 : 670,095,560.28 = 318,191,518.22 : x
  2. Step 2: Convert to fraction form
    485,444,483.06/670,095,560.28 = 318,191,518.22/x
  3. Step 3: Cross multiply
    485,444,483.06x = 670,095,560.28 × 318,191,518.22
  4. Step 4: Simplify right side
    485,444,483.06x = 213,218,723,677,974,752
  5. Step 5: Solve for x
    x = 213,218,723,677,974,752/485,444,483.06
  6. Step 6: Final answer
    x = 439,223,703.47

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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.