Home / 78,223,300.20-107,939,398.77-43,417,457.64

Finding the Fourth Proportional to 78,223,300.20, 107,939,398.77 and 43,417,457.64

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Solution

The fourth proportional to 78,223,300.20, 107,939,398.77 and 43,417,457.64 is: 59,911,231.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,223,300.20 : 107,939,398.77 = 43,417,457.64 : x
  2. Step 2: Convert to fraction form
    78,223,300.20/107,939,398.77 = 43,417,457.64/x
  3. Step 3: Cross multiply
    78,223,300.20x = 107,939,398.77 × 43,417,457.64
  4. Step 4: Simplify right side
    78,223,300.20x = 4,686,454,273,783,543
  5. Step 5: Solve for x
    x = 4,686,454,273,783,543/78,223,300.20
  6. Step 6: Final answer
    x = 59,911,231.84

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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.