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Finding the Fourth Proportional to 388,809,564.22, 583,214,907.62 and 158,778,648.87

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Solution

The fourth proportional to 388,809,564.22, 583,214,907.62 and 158,778,648.87 is: 238,168,202.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,809,564.22 : 583,214,907.62 = 158,778,648.87 : x
  2. Step 2: Convert to fraction form
    388,809,564.22/583,214,907.62 = 158,778,648.87/x
  3. Step 3: Cross multiply
    388,809,564.22x = 583,214,907.62 × 158,778,648.87
  4. Step 4: Simplify right side
    388,809,564.22x = 92,602,075,035,427,280
  5. Step 5: Solve for x
    x = 92,602,075,035,427,280/388,809,564.22
  6. Step 6: Final answer
    x = 238,168,202.53

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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.