Home / 386,465,686.88-533,324,967.24-210,254,946.32

Finding the Fourth Proportional to 386,465,686.88, 533,324,967.24 and 210,254,946.32

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Solution

The fourth proportional to 386,465,686.88, 533,324,967.24 and 210,254,946.32 is: 290,153,087.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,465,686.88 : 533,324,967.24 = 210,254,946.32 : x
  2. Step 2: Convert to fraction form
    386,465,686.88/533,324,967.24 = 210,254,946.32/x
  3. Step 3: Cross multiply
    386,465,686.88x = 533,324,967.24 × 210,254,946.32
  4. Step 4: Simplify right side
    386,465,686.88x = 112,134,212,358,161,952
  5. Step 5: Solve for x
    x = 112,134,212,358,161,952/386,465,686.88
  6. Step 6: Final answer
    x = 290,153,087.75

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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.