Home / 289,989,075.98-400,193,422.81-157,838,631.89

Finding the Fourth Proportional to 289,989,075.98, 400,193,422.81 and 157,838,631.89

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Solution

The fourth proportional to 289,989,075.98, 400,193,422.81 and 157,838,631.89 is: 217,821,937.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,989,075.98 : 400,193,422.81 = 157,838,631.89 : x
  2. Step 2: Convert to fraction form
    289,989,075.98/400,193,422.81 = 157,838,631.89/x
  3. Step 3: Cross multiply
    289,989,075.98x = 400,193,422.81 × 157,838,631.89
  4. Step 4: Simplify right side
    289,989,075.98x = 63,165,982,345,311,152
  5. Step 5: Solve for x
    x = 63,165,982,345,311,152/289,989,075.98
  6. Step 6: Final answer
    x = 217,821,937.37

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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.