Home / 758,646,219.40-1,137,402,458.70-413,989,016.20

Finding the Fourth Proportional to 758,646,219.40, 1,137,402,458.70 and 413,989,016.20

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Solution

The fourth proportional to 758,646,219.40, 1,137,402,458.70 and 413,989,016.20 is: 620,674,186.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,646,219.40 : 1,137,402,458.70 = 413,989,016.20 : x
  2. Step 2: Convert to fraction form
    758,646,219.40/1,137,402,458.70 = 413,989,016.20/x
  3. Step 3: Cross multiply
    758,646,219.40x = 1,137,402,458.70 × 413,989,016.20
  4. Step 4: Simplify right side
    758,646,219.40x = 470,872,124,900,674,112
  5. Step 5: Solve for x
    x = 470,872,124,900,674,112/758,646,219.40
  6. Step 6: Final answer
    x = 620,674,186.28

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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.