Home / 77,353,155-106,749,373.50-42,546,758.40

Finding the Fourth Proportional to 77,353,155, 106,749,373.50 and 42,546,758.40

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Solution

The fourth proportional to 77,353,155, 106,749,373.50 and 42,546,758.40 is: 58,715,637.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,353,155 : 106,749,373.50 = 42,546,758.40 : x
  2. Step 2: Convert to fraction form
    77,353,155/106,749,373.50 = 42,546,758.40/x
  3. Step 3: Cross multiply
    77,353,155x = 106,749,373.50 × 42,546,758.40
  4. Step 4: Simplify right side
    77,353,155x = 4,541,839,803,655,862
  5. Step 5: Solve for x
    x = 4,541,839,803,655,862/77,353,155
  6. Step 6: Final answer
    x = 58,715,637.44

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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.