Home / 55,963,789.47-77,228,994.74-30,503,428.40

Finding the Fourth Proportional to 55,963,789.47, 77,228,994.74 and 30,503,428.40

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Solution

The fourth proportional to 55,963,789.47, 77,228,994.74 and 30,503,428.40 is: 42,094,167.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,963,789.47 : 77,228,994.74 = 30,503,428.40 : x
  2. Step 2: Convert to fraction form
    55,963,789.47/77,228,994.74 = 30,503,428.40/x
  3. Step 3: Cross multiply
    55,963,789.47x = 77,228,994.74 × 30,503,428.40
  4. Step 4: Simplify right side
    55,963,789.47x = 2,355,749,111,777,123.50
  5. Step 5: Solve for x
    x = 2,355,749,111,777,123.50/55,963,789.47
  6. Step 6: Final answer
    x = 42,094,167.21

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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.