Home / 612,147,637.80-918,221,456.70-336,648,623.40

Finding the Fourth Proportional to 612,147,637.80, 918,221,456.70 and 336,648,623.40

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Solution

The fourth proportional to 612,147,637.80, 918,221,456.70 and 336,648,623.40 is: 504,972,935.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,147,637.80 : 918,221,456.70 = 336,648,623.40 : x
  2. Step 2: Convert to fraction form
    612,147,637.80/918,221,456.70 = 336,648,623.40/x
  3. Step 3: Cross multiply
    612,147,637.80x = 918,221,456.70 × 336,648,623.40
  4. Step 4: Simplify right side
    612,147,637.80x = 309,117,989,374,397,696
  5. Step 5: Solve for x
    x = 309,117,989,374,397,696/612,147,637.80
  6. Step 6: Final answer
    x = 504,972,935.10

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Double scale
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Similar ratio
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1.5x scale

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.