Home / 77,337,905.28-106,729,048.08-42,533,289.60

Finding the Fourth Proportional to 77,337,905.28, 106,729,048.08 and 42,533,289.60

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Solution

The fourth proportional to 77,337,905.28, 106,729,048.08 and 42,533,289.60 is: 58,697,445.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,337,905.28 : 106,729,048.08 = 42,533,289.60 : x
  2. Step 2: Convert to fraction form
    77,337,905.28/106,729,048.08 = 42,533,289.60/x
  3. Step 3: Cross multiply
    77,337,905.28x = 106,729,048.08 × 42,533,289.60
  4. Step 4: Simplify right side
    77,337,905.28x = 4,539,537,510,718,964
  5. Step 5: Solve for x
    x = 4,539,537,510,718,964/77,337,905.28
  6. Step 6: Final answer
    x = 58,697,445.89

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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.