Home / 387,005,422.08-534,079,714.56-210,798,712.32

Finding the Fourth Proportional to 387,005,422.08, 534,079,714.56 and 210,798,712.32

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Solution

The fourth proportional to 387,005,422.08, 534,079,714.56 and 210,798,712.32 is: 290,908,885.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,005,422.08 : 534,079,714.56 = 210,798,712.32 : x
  2. Step 2: Convert to fraction form
    387,005,422.08/534,079,714.56 = 210,798,712.32/x
  3. Step 3: Cross multiply
    387,005,422.08x = 534,079,714.56 × 210,798,712.32
  4. Step 4: Simplify right side
    387,005,422.08x = 112,583,316,105,481,152
  5. Step 5: Solve for x
    x = 112,583,316,105,481,152/387,005,422.08
  6. Step 6: Final answer
    x = 290,908,885.72

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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.