Home / 200,688,234.42-301,142,071.80-77,871,394.74

Finding the Fourth Proportional to 200,688,234.42, 301,142,071.80 and 77,871,394.74

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Solution

The fourth proportional to 200,688,234.42, 301,142,071.80 and 77,871,394.74 is: 116,849,665.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,688,234.42 : 301,142,071.80 = 77,871,394.74 : x
  2. Step 2: Convert to fraction form
    200,688,234.42/301,142,071.80 = 77,871,394.74/x
  3. Step 3: Cross multiply
    200,688,234.42x = 301,142,071.80 × 77,871,394.74
  4. Step 4: Simplify right side
    200,688,234.42x = 23,450,353,145,959,220
  5. Step 5: Solve for x
    x = 23,450,353,145,959,220/200,688,234.42
  6. Step 6: Final answer
    x = 116,849,665.92

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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.