Home / 918,833,883.96-1,377,476,103.06-400,884,425.40

Finding the Fourth Proportional to 918,833,883.96, 1,377,476,103.06 and 400,884,425.40

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Solution

The fourth proportional to 918,833,883.96, 1,377,476,103.06 and 400,884,425.40 is: 600,988,628.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,833,883.96 : 1,377,476,103.06 = 400,884,425.40 : x
  2. Step 2: Convert to fraction form
    918,833,883.96/1,377,476,103.06 = 400,884,425.40/x
  3. Step 3: Cross multiply
    918,833,883.96x = 1,377,476,103.06 × 400,884,425.40
  4. Step 4: Simplify right side
    918,833,883.96x = 552,208,716,077,439,232
  5. Step 5: Solve for x
    x = 552,208,716,077,439,232/918,833,883.96
  6. Step 6: Final answer
    x = 600,988,628.87

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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.