Home / 425,348,521.80-638,022,782.70-166,477,705.80

Finding the Fourth Proportional to 425,348,521.80, 638,022,782.70 and 166,477,705.80

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Solution

The fourth proportional to 425,348,521.80, 638,022,782.70 and 166,477,705.80 is: 249,716,558.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,348,521.80 : 638,022,782.70 = 166,477,705.80 : x
  2. Step 2: Convert to fraction form
    425,348,521.80/638,022,782.70 = 166,477,705.80/x
  3. Step 3: Cross multiply
    425,348,521.80x = 638,022,782.70 × 166,477,705.80
  4. Step 4: Simplify right side
    425,348,521.80x = 106,216,569,112,027,952
  5. Step 5: Solve for x
    x = 106,216,569,112,027,952/425,348,521.80
  6. Step 6: Final answer
    x = 249,716,558.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.