Home / 256,608,075.20-384,912,112.80-65,131,851.20

Finding the Fourth Proportional to 256,608,075.20, 384,912,112.80 and 65,131,851.20

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Solution

The fourth proportional to 256,608,075.20, 384,912,112.80 and 65,131,851.20 is: 97,697,776.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,608,075.20 : 384,912,112.80 = 65,131,851.20 : x
  2. Step 2: Convert to fraction form
    256,608,075.20/384,912,112.80 = 65,131,851.20/x
  3. Step 3: Cross multiply
    256,608,075.20x = 384,912,112.80 × 65,131,851.20
  4. Step 4: Simplify right side
    256,608,075.20x = 25,070,038,455,967,216
  5. Step 5: Solve for x
    x = 25,070,038,455,967,216/256,608,075.20
  6. Step 6: Final answer
    x = 97,697,776.80

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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.