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Finding the Fourth Proportional to 388,809,562.92, 583,214,905.70 and 158,778,647.58

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Solution

The fourth proportional to 388,809,562.92, 583,214,905.70 and 158,778,647.58 is: 238,168,200.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,809,562.92 : 583,214,905.70 = 158,778,647.58 : x
  2. Step 2: Convert to fraction form
    388,809,562.92/583,214,905.70 = 158,778,647.58/x
  3. Step 3: Cross multiply
    388,809,562.92x = 583,214,905.70 × 158,778,647.58
  4. Step 4: Simplify right side
    388,809,562.92x = 92,602,073,975,543,248
  5. Step 5: Solve for x
    x = 92,602,073,975,543,248/388,809,562.92
  6. Step 6: Final answer
    x = 238,168,200.60

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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.