Home / 778,285,484,278.96-1,167,604,260,672.90-420,129,770,417.62

Finding the Fourth Proportional to 778,285,484,278.96, 1,167,604,260,672.90 and 420,129,770,417.62

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Solution

The fourth proportional to 778,285,484,278.96, 1,167,604,260,672.90 and 420,129,770,417.62 is: 630,289,681,465.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,285,484,278.96 : 1,167,604,260,672.90 = 420,129,770,417.62 : x
  2. Step 2: Convert to fraction form
    778,285,484,278.96/1,167,604,260,672.90 = 420,129,770,417.62/x
  3. Step 3: Cross multiply
    778,285,484,278.96x = 1,167,604,260,672.90 × 420,129,770,417.62
  4. Step 4: Simplify right side
    778,285,484,278.96x = 490,545,309,975,140,351,606,784
  5. Step 5: Solve for x
    x = 490,545,309,975,140,351,606,784/778,285,484,278.96
  6. Step 6: Final answer
    x = 630,289,681,465.16

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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.