Home / 109,138,768.60-163,730,897.70-36,378,153.40

Finding the Fourth Proportional to 109,138,768.60, 163,730,897.70 and 36,378,153.40

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Solution

The fourth proportional to 109,138,768.60, 163,730,897.70 and 36,378,153.40 is: 54,574,811.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,138,768.60 : 163,730,897.70 = 36,378,153.40 : x
  2. Step 2: Convert to fraction form
    109,138,768.60/163,730,897.70 = 36,378,153.40/x
  3. Step 3: Cross multiply
    109,138,768.60x = 163,730,897.70 × 36,378,153.40
  4. Step 4: Simplify right side
    109,138,768.60x = 5,956,227,712,850,307
  5. Step 5: Solve for x
    x = 5,956,227,712,850,307/109,138,768.60
  6. Step 6: Final answer
    x = 54,574,811.40

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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.