Home / 72,762,731.84-100,411,954.08-40,166,984

Finding the Fourth Proportional to 72,762,731.84, 100,411,954.08 and 40,166,984

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Solution

The fourth proportional to 72,762,731.84, 100,411,954.08 and 40,166,984 is: 55,430,097.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,762,731.84 : 100,411,954.08 = 40,166,984 : x
  2. Step 2: Convert to fraction form
    72,762,731.84/100,411,954.08 = 40,166,984/x
  3. Step 3: Cross multiply
    72,762,731.84x = 100,411,954.08 × 40,166,984
  4. Step 4: Simplify right side
    72,762,731.84x = 4,033,245,352,940,094.50
  5. Step 5: Solve for x
    x = 4,033,245,352,940,094.50/72,762,731.84
  6. Step 6: Final answer
    x = 55,430,097.95

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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.