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Finding the Fourth Proportional to 404,258,929.30, 606,388,393.95 and 400,857,706.90

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Solution

The fourth proportional to 404,258,929.30, 606,388,393.95 and 400,857,706.90 is: 601,286,560.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,258,929.30 : 606,388,393.95 = 400,857,706.90 : x
  2. Step 2: Convert to fraction form
    404,258,929.30/606,388,393.95 = 400,857,706.90/x
  3. Step 3: Cross multiply
    404,258,929.30x = 606,388,393.95 × 400,857,706.90
  4. Step 4: Simplify right side
    404,258,929.30x = 243,075,461,089,570,848
  5. Step 5: Solve for x
    x = 243,075,461,089,570,848/404,258,929.30
  6. Step 6: Final answer
    x = 601,286,560.35

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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.