Home / 111,312,072.78-155,518,396.93-111,312,072.78

Finding the Fourth Proportional to 111,312,072.78, 155,518,396.93 and 111,312,072.78

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Solution

The fourth proportional to 111,312,072.78, 155,518,396.93 and 111,312,072.78 is: 155,518,396.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,312,072.78 : 155,518,396.93 = 111,312,072.78 : x
  2. Step 2: Convert to fraction form
    111,312,072.78/155,518,396.93 = 111,312,072.78/x
  3. Step 3: Cross multiply
    111,312,072.78x = 155,518,396.93 × 111,312,072.78
  4. Step 4: Simplify right side
    111,312,072.78x = 17,311,075,116,366,938
  5. Step 5: Solve for x
    x = 17,311,075,116,366,938/111,312,072.78
  6. Step 6: Final answer
    x = 155,518,396.93

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.