Home / 659,460,570.30-989,194,267.80-386,640,018.54

Finding the Fourth Proportional to 659,460,570.30, 989,194,267.80 and 386,640,018.54

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Solution

The fourth proportional to 659,460,570.30, 989,194,267.80 and 386,640,018.54 is: 579,962,028.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,460,570.30 : 989,194,267.80 = 386,640,018.54 : x
  2. Step 2: Convert to fraction form
    659,460,570.30/989,194,267.80 = 386,640,018.54/x
  3. Step 3: Cross multiply
    659,460,570.30x = 989,194,267.80 × 386,640,018.54
  4. Step 4: Simplify right side
    659,460,570.30x = 382,462,090,041,853,696
  5. Step 5: Solve for x
    x = 382,462,090,041,853,696/659,460,570.30
  6. Step 6: Final answer
    x = 579,962,028.46

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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.