Home / 155,559,643.20-233,283,477.60-78,857,179.20

Finding the Fourth Proportional to 155,559,643.20, 233,283,477.60 and 78,857,179.20

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Solution

The fourth proportional to 155,559,643.20, 233,283,477.60 and 78,857,179.20 is: 118,257,387.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,559,643.20 : 233,283,477.60 = 78,857,179.20 : x
  2. Step 2: Convert to fraction form
    155,559,643.20/233,283,477.60 = 78,857,179.20/x
  3. Step 3: Cross multiply
    155,559,643.20x = 233,283,477.60 × 78,857,179.20
  4. Step 4: Simplify right side
    155,559,643.20x = 18,396,076,997,502,388
  5. Step 5: Solve for x
    x = 18,396,076,997,502,388/155,559,643.20
  6. Step 6: Final answer
    x = 118,257,387.45

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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.