Home / 670,334,388.32-925,046,931.48-388,088,721.92

Finding the Fourth Proportional to 670,334,388.32, 925,046,931.48 and 388,088,721.92

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Solution

The fourth proportional to 670,334,388.32, 925,046,931.48 and 388,088,721.92 is: 535,554,027.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,334,388.32 : 925,046,931.48 = 388,088,721.92 : x
  2. Step 2: Convert to fraction form
    670,334,388.32/925,046,931.48 = 388,088,721.92/x
  3. Step 3: Cross multiply
    670,334,388.32x = 925,046,931.48 × 388,088,721.92
  4. Step 4: Simplify right side
    670,334,388.32x = 359,000,281,354,091,008
  5. Step 5: Solve for x
    x = 359,000,281,354,091,008/670,334,388.32
  6. Step 6: Final answer
    x = 535,554,027.38

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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.