Home / 492,034,258.75-679,021,448.84-272,031,856.51

Finding the Fourth Proportional to 492,034,258.75, 679,021,448.84 and 272,031,856.51

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Solution

The fourth proportional to 492,034,258.75, 679,021,448.84 and 272,031,856.51 is: 375,411,797.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,034,258.75 : 679,021,448.84 = 272,031,856.51 : x
  2. Step 2: Convert to fraction form
    492,034,258.75/679,021,448.84 = 272,031,856.51/x
  3. Step 3: Cross multiply
    492,034,258.75x = 679,021,448.84 × 272,031,856.51
  4. Step 4: Simplify right side
    492,034,258.75x = 184,715,465,338,055,200
  5. Step 5: Solve for x
    x = 184,715,465,338,055,200/492,034,258.75
  6. Step 6: Final answer
    x = 375,411,797.15

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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.