Home / 259,075,456.80-388,656,730.80-77,341,005.60

Finding the Fourth Proportional to 259,075,456.80, 388,656,730.80 and 77,341,005.60

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Solution

The fourth proportional to 259,075,456.80, 388,656,730.80 and 77,341,005.60 is: 116,024,507.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,075,456.80 : 388,656,730.80 = 77,341,005.60 : x
  2. Step 2: Convert to fraction form
    259,075,456.80/388,656,730.80 = 77,341,005.60/x
  3. Step 3: Cross multiply
    259,075,456.80x = 388,656,730.80 × 77,341,005.60
  4. Step 4: Simplify right side
    259,075,456.80x = 30,059,102,393,280,492
  5. Step 5: Solve for x
    x = 30,059,102,393,280,492/259,075,456.80
  6. Step 6: Final answer
    x = 116,024,507.94

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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.