Home / 282,753,908.71-390,203,985-155,609,225.89

Finding the Fourth Proportional to 282,753,908.71, 390,203,985 and 155,609,225.89

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Solution

The fourth proportional to 282,753,908.71, 390,203,985 and 155,609,225.89 is: 214,742,707.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,753,908.71 : 390,203,985 = 155,609,225.89 : x
  2. Step 2: Convert to fraction form
    282,753,908.71/390,203,985 = 155,609,225.89/x
  3. Step 3: Cross multiply
    282,753,908.71x = 390,203,985 × 155,609,225.89
  4. Step 4: Simplify right side
    282,753,908.71x = 60,719,340,045,043,168
  5. Step 5: Solve for x
    x = 60,719,340,045,043,168/282,753,908.71
  6. Step 6: Final answer
    x = 214,742,707.97

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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.