Home / 1,147,397,108.40-1,721,095,662.60-371,121,239.70

Finding the Fourth Proportional to 1,147,397,108.40, 1,721,095,662.60 and 371,121,239.70

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Solution

The fourth proportional to 1,147,397,108.40, 1,721,095,662.60 and 371,121,239.70 is: 556,681,859.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,147,397,108.40 : 1,721,095,662.60 = 371,121,239.70 : x
  2. Step 2: Convert to fraction form
    1,147,397,108.40/1,721,095,662.60 = 371,121,239.70/x
  3. Step 3: Cross multiply
    1,147,397,108.40x = 1,721,095,662.60 × 371,121,239.70
  4. Step 4: Simplify right side
    1,147,397,108.40x = 638,735,155,946,404,864
  5. Step 5: Solve for x
    x = 638,735,155,946,404,864/1,147,397,108.40
  6. Step 6: Final answer
    x = 556,681,859.55

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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.