Home / 258,299,686.35-356,453,315.82-140,824,985.40

Finding the Fourth Proportional to 258,299,686.35, 356,453,315.82 and 140,824,985.40

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Solution

The fourth proportional to 258,299,686.35, 356,453,315.82 and 140,824,985.40 is: 194,338,342.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,299,686.35 : 356,453,315.82 = 140,824,985.40 : x
  2. Step 2: Convert to fraction form
    258,299,686.35/356,453,315.82 = 140,824,985.40/x
  3. Step 3: Cross multiply
    258,299,686.35x = 356,453,315.82 × 140,824,985.40
  4. Step 4: Simplify right side
    258,299,686.35x = 50,197,532,996,133,088
  5. Step 5: Solve for x
    x = 50,197,532,996,133,088/258,299,686.35
  6. Step 6: Final answer
    x = 194,338,342.82

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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.