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Finding the Fourth Proportional to 243,579,374.40, 365,369,061.60 and 236,404,920.90

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Solution

The fourth proportional to 243,579,374.40, 365,369,061.60 and 236,404,920.90 is: 354,607,381.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,579,374.40 : 365,369,061.60 = 236,404,920.90 : x
  2. Step 2: Convert to fraction form
    243,579,374.40/365,369,061.60 = 236,404,920.90/x
  3. Step 3: Cross multiply
    243,579,374.40x = 365,369,061.60 × 236,404,920.90
  4. Step 4: Simplify right side
    243,579,374.40x = 86,375,044,106,855,232
  5. Step 5: Solve for x
    x = 86,375,044,106,855,232/243,579,374.40
  6. Step 6: Final answer
    x = 354,607,381.35

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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.