Home / 368,854,088.06-509,019,137.54-212,218,053.45

Finding the Fourth Proportional to 368,854,088.06, 509,019,137.54 and 212,218,053.45

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Solution

The fourth proportional to 368,854,088.06, 509,019,137.54 and 212,218,053.45 is: 292,861,199.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,854,088.06 : 509,019,137.54 = 212,218,053.45 : x
  2. Step 2: Convert to fraction form
    368,854,088.06/509,019,137.54 = 212,218,053.45/x
  3. Step 3: Cross multiply
    368,854,088.06x = 509,019,137.54 × 212,218,053.45
  4. Step 4: Simplify right side
    368,854,088.06x = 108,023,050,536,475,536
  5. Step 5: Solve for x
    x = 108,023,050,536,475,536/368,854,088.06
  6. Step 6: Final answer
    x = 292,861,199.14

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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.