Home / 211,013,018.40-316,519,527.60-211,013,018.40

Finding the Fourth Proportional to 211,013,018.40, 316,519,527.60 and 211,013,018.40

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Solution

The fourth proportional to 211,013,018.40, 316,519,527.60 and 211,013,018.40 is: 316,519,527.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,013,018.40 : 316,519,527.60 = 211,013,018.40 : x
  2. Step 2: Convert to fraction form
    211,013,018.40/316,519,527.60 = 211,013,018.40/x
  3. Step 3: Cross multiply
    211,013,018.40x = 316,519,527.60 × 211,013,018.40
  4. Step 4: Simplify right side
    211,013,018.40x = 66,789,740,901,418,112
  5. Step 5: Solve for x
    x = 66,789,740,901,418,112/211,013,018.40
  6. Step 6: Final answer
    x = 316,519,527.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.