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Finding the Fourth Proportional to 608,878,430.48, 840,252,783.54 and 330,419,956.76

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Solution

The fourth proportional to 608,878,430.48, 840,252,783.54 and 330,419,956.76 is: 455,979,838.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,878,430.48 : 840,252,783.54 = 330,419,956.76 : x
  2. Step 2: Convert to fraction form
    608,878,430.48/840,252,783.54 = 330,419,956.76/x
  3. Step 3: Cross multiply
    608,878,430.48x = 840,252,783.54 × 330,419,956.76
  4. Step 4: Simplify right side
    608,878,430.48x = 277,636,288,404,756,416
  5. Step 5: Solve for x
    x = 277,636,288,404,756,416/608,878,430.48
  6. Step 6: Final answer
    x = 455,979,838.51

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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.