Home / 77,167,341.20-106,490,510.40-42,360,623.84

Finding the Fourth Proportional to 77,167,341.20, 106,490,510.40 and 42,360,623.84

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Solution

The fourth proportional to 77,167,341.20, 106,490,510.40 and 42,360,623.84 is: 58,457,430.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,167,341.20 : 106,490,510.40 = 42,360,623.84 : x
  2. Step 2: Convert to fraction form
    77,167,341.20/106,490,510.40 = 42,360,623.84/x
  3. Step 3: Cross multiply
    77,167,341.20x = 106,490,510.40 × 42,360,623.84
  4. Step 4: Simplify right side
    77,167,341.20x = 4,511,004,453,584,009
  5. Step 5: Solve for x
    x = 4,511,004,453,584,009/77,167,341.20
  6. Step 6: Final answer
    x = 58,457,430.09

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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.