Home / 458,578,718.91-687,848,864.36-147,679,453.58

Finding the Fourth Proportional to 458,578,718.91, 687,848,864.36 and 147,679,453.58

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Solution

The fourth proportional to 458,578,718.91, 687,848,864.36 and 147,679,453.58 is: 221,512,992.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,578,718.91 : 687,848,864.36 = 147,679,453.58 : x
  2. Step 2: Convert to fraction form
    458,578,718.91/687,848,864.36 = 147,679,453.58/x
  3. Step 3: Cross multiply
    458,578,718.91x = 687,848,864.36 × 147,679,453.58
  4. Step 4: Simplify right side
    458,578,718.91x = 101,581,144,430,130,688
  5. Step 5: Solve for x
    x = 101,581,144,430,130,688/458,578,718.91
  6. Step 6: Final answer
    x = 221,512,992.73

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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.