Home / 388,809,564.41-583,214,907.90-158,778,649.07

Finding the Fourth Proportional to 388,809,564.41, 583,214,907.90 and 158,778,649.07

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Solution

The fourth proportional to 388,809,564.41, 583,214,907.90 and 158,778,649.07 is: 238,168,202.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,809,564.41 : 583,214,907.90 = 158,778,649.07 : x
  2. Step 2: Convert to fraction form
    388,809,564.41/583,214,907.90 = 158,778,649.07/x
  3. Step 3: Cross multiply
    388,809,564.41x = 583,214,907.90 × 158,778,649.07
  4. Step 4: Simplify right side
    388,809,564.41x = 92,602,075,190,930,384
  5. Step 5: Solve for x
    x = 92,602,075,190,930,384/388,809,564.41
  6. Step 6: Final answer
    x = 238,168,202.81

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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.