Home / 289,840,253.74-399,970,436.93-157,677,864.50

Finding the Fourth Proportional to 289,840,253.74, 399,970,436.93 and 157,677,864.50

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Solution

The fourth proportional to 289,840,253.74, 399,970,436.93 and 157,677,864.50 is: 217,590,495.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,840,253.74 : 399,970,436.93 = 157,677,864.50 : x
  2. Step 2: Convert to fraction form
    289,840,253.74/399,970,436.93 = 157,677,864.50/x
  3. Step 3: Cross multiply
    289,840,253.74x = 399,970,436.93 × 157,677,864.50
  4. Step 4: Simplify right side
    289,840,253.74x = 63,066,484,359,057,160
  5. Step 5: Solve for x
    x = 63,066,484,359,057,160/289,840,253.74
  6. Step 6: Final answer
    x = 217,590,495.27

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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.