Home / 392,746,360.70-542,507,336.62-291,110,077.17

Finding the Fourth Proportional to 392,746,360.70, 542,507,336.62 and 291,110,077.17

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Solution

The fourth proportional to 392,746,360.70, 542,507,336.62 and 291,110,077.17 is: 402,115,381.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,746,360.70 : 542,507,336.62 = 291,110,077.17 : x
  2. Step 2: Convert to fraction form
    392,746,360.70/542,507,336.62 = 291,110,077.17/x
  3. Step 3: Cross multiply
    392,746,360.70x = 542,507,336.62 × 291,110,077.17
  4. Step 4: Simplify right side
    392,746,360.70x = 157,929,352,626,026,848
  5. Step 5: Solve for x
    x = 157,929,352,626,026,848/392,746,360.70
  6. Step 6: Final answer
    x = 402,115,381.40

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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.