Home / 778,285,484,276.46-1,167,604,260,669.10-420,129,770,415.12

Finding the Fourth Proportional to 778,285,484,276.46, 1,167,604,260,669.10 and 420,129,770,415.12

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Solution

The fourth proportional to 778,285,484,276.46, 1,167,604,260,669.10 and 420,129,770,415.12 is: 630,289,681,461.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,285,484,276.46 : 1,167,604,260,669.10 = 420,129,770,415.12 : x
  2. Step 2: Convert to fraction form
    778,285,484,276.46/1,167,604,260,669.10 = 420,129,770,415.12/x
  3. Step 3: Cross multiply
    778,285,484,276.46x = 1,167,604,260,669.10 × 420,129,770,415.12
  4. Step 4: Simplify right side
    778,285,484,276.46x = 490,545,309,970,624,931,692,544
  5. Step 5: Solve for x
    x = 490,545,309,970,624,931,692,544/778,285,484,276.46
  6. Step 6: Final answer
    x = 630,289,681,461.38

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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.