Home / 657,604,681.74-907,273,379.79-379,140,134.22

Finding the Fourth Proportional to 657,604,681.74, 907,273,379.79 and 379,140,134.22

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Solution

The fourth proportional to 657,604,681.74, 907,273,379.79 and 379,140,134.22 is: 523,085,921.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,604,681.74 : 907,273,379.79 = 379,140,134.22 : x
  2. Step 2: Convert to fraction form
    657,604,681.74/907,273,379.79 = 379,140,134.22/x
  3. Step 3: Cross multiply
    657,604,681.74x = 907,273,379.79 × 379,140,134.22
  4. Step 4: Simplify right side
    657,604,681.74x = 343,983,750,987,813,632
  5. Step 5: Solve for x
    x = 343,983,750,987,813,632/657,604,681.74
  6. Step 6: Final answer
    x = 523,085,921.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.