Home / 758,646,218.40-1,137,402,457.20-413,989,015.20

Finding the Fourth Proportional to 758,646,218.40, 1,137,402,457.20 and 413,989,015.20

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Solution

The fourth proportional to 758,646,218.40, 1,137,402,457.20 and 413,989,015.20 is: 620,674,184.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,646,218.40 : 1,137,402,457.20 = 413,989,015.20 : x
  2. Step 2: Convert to fraction form
    758,646,218.40/1,137,402,457.20 = 413,989,015.20/x
  3. Step 3: Cross multiply
    758,646,218.40x = 1,137,402,457.20 × 413,989,015.20
  4. Step 4: Simplify right side
    758,646,218.40x = 470,872,123,142,288,128
  5. Step 5: Solve for x
    x = 470,872,123,142,288,128/758,646,218.40
  6. Step 6: Final answer
    x = 620,674,184.78

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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.