Home / 388,546,572.29-536,195,670.18-212,334,588.50

Finding the Fourth Proportional to 388,546,572.29, 536,195,670.18 and 212,334,588.50

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Solution

The fourth proportional to 388,546,572.29, 536,195,670.18 and 212,334,588.50 is: 293,022,497.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,546,572.29 : 536,195,670.18 = 212,334,588.50 : x
  2. Step 2: Convert to fraction form
    388,546,572.29/536,195,670.18 = 212,334,588.50/x
  3. Step 3: Cross multiply
    388,546,572.29x = 536,195,670.18 × 212,334,588.50
  4. Step 4: Simplify right side
    388,546,572.29x = 113,852,886,983,152,016
  5. Step 5: Solve for x
    x = 113,852,886,983,152,016/388,546,572.29
  6. Step 6: Final answer
    x = 293,022,497.44

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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.