Home / 211,128,006.47-316,709,243.72-106,029,298.11

Finding the Fourth Proportional to 211,128,006.47, 316,709,243.72 and 106,029,298.11

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Solution

The fourth proportional to 211,128,006.47, 316,709,243.72 and 106,029,298.11 is: 159,052,602.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,128,006.47 : 316,709,243.72 = 106,029,298.11 : x
  2. Step 2: Convert to fraction form
    211,128,006.47/316,709,243.72 = 106,029,298.11/x
  3. Step 3: Cross multiply
    211,128,006.47x = 316,709,243.72 × 106,029,298.11
  4. Step 4: Simplify right side
    211,128,006.47x = 33,580,458,816,050,376
  5. Step 5: Solve for x
    x = 33,580,458,816,050,376/211,128,006.47
  6. Step 6: Final answer
    x = 159,052,602.15

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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.