Home / 243,727,075.28-336,343,363.88-139,307,388.62

Finding the Fourth Proportional to 243,727,075.28, 336,343,363.88 and 139,307,388.62

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Solution

The fourth proportional to 243,727,075.28, 336,343,363.88 and 139,307,388.62 is: 192,244,196.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,727,075.28 : 336,343,363.88 = 139,307,388.62 : x
  2. Step 2: Convert to fraction form
    243,727,075.28/336,343,363.88 = 139,307,388.62/x
  3. Step 3: Cross multiply
    243,727,075.28x = 336,343,363.88 × 139,307,388.62
  4. Step 4: Simplify right side
    243,727,075.28x = 46,855,115,699,410,984
  5. Step 5: Solve for x
    x = 46,855,115,699,410,984/243,727,075.28
  6. Step 6: Final answer
    x = 192,244,196.28

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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.