Home / 1,420,374,748-2,130,562,122-399,168,220

Finding the Fourth Proportional to 1,420,374,748, 2,130,562,122 and 399,168,220

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Solution

The fourth proportional to 1,420,374,748, 2,130,562,122 and 399,168,220 is: 598,752,330

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,374,748 : 2,130,562,122 = 399,168,220 : x
  2. Step 2: Convert to fraction form
    1,420,374,748/2,130,562,122 = 399,168,220/x
  3. Step 3: Cross multiply
    1,420,374,748x = 2,130,562,122 × 399,168,220
  4. Step 4: Simplify right side
    1,420,374,748x = 850,452,689,838,162,816
  5. Step 5: Solve for x
    x = 850,452,689,838,162,816/1,420,374,748
  6. Step 6: Final answer
    x = 598,752,330

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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.