Home / 153,678,137.72-212,075,830.10-83,113,747.44

Finding the Fourth Proportional to 153,678,137.72, 212,075,830.10 and 83,113,747.44

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Solution

The fourth proportional to 153,678,137.72, 212,075,830.10 and 83,113,747.44 is: 114,696,971.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,678,137.72 : 212,075,830.10 = 83,113,747.44 : x
  2. Step 2: Convert to fraction form
    153,678,137.72/212,075,830.10 = 83,113,747.44/x
  3. Step 3: Cross multiply
    153,678,137.72x = 212,075,830.10 × 83,113,747.44
  4. Step 4: Simplify right side
    153,678,137.72x = 17,626,416,980,644,180
  5. Step 5: Solve for x
    x = 17,626,416,980,644,180/153,678,137.72
  6. Step 6: Final answer
    x = 114,696,971.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.