Home / 885,341,338.40-1,328,012,007.60-310,912,666.40

Finding the Fourth Proportional to 885,341,338.40, 1,328,012,007.60 and 310,912,666.40

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Solution

The fourth proportional to 885,341,338.40, 1,328,012,007.60 and 310,912,666.40 is: 466,368,999.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,341,338.40 : 1,328,012,007.60 = 310,912,666.40 : x
  2. Step 2: Convert to fraction form
    885,341,338.40/1,328,012,007.60 = 310,912,666.40/x
  3. Step 3: Cross multiply
    885,341,338.40x = 1,328,012,007.60 × 310,912,666.40
  4. Step 4: Simplify right side
    885,341,338.40x = 412,895,754,294,132,992
  5. Step 5: Solve for x
    x = 412,895,754,294,132,992/885,341,338.40
  6. Step 6: Final answer
    x = 466,368,999.60

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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.