Home / 420,332,969,313.08-630,580,573,132.50-137,275,715,969.72

Finding the Fourth Proportional to 420,332,969,313.08, 630,580,573,132.50 and 137,275,715,969.72

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Solution

The fourth proportional to 420,332,969,313.08, 630,580,573,132.50 and 137,275,715,969.72 is: 205,940,066,502.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,332,969,313.08 : 630,580,573,132.50 = 137,275,715,969.72 : x
  2. Step 2: Convert to fraction form
    420,332,969,313.08/630,580,573,132.50 = 137,275,715,969.72/x
  3. Step 3: Cross multiply
    420,332,969,313.08x = 630,580,573,132.50 × 137,275,715,969.72
  4. Step 4: Simplify right side
    420,332,969,313.08x = 86,563,399,653,360,322,740,224
  5. Step 5: Solve for x
    x = 86,563,399,653,360,322,740,224/420,332,969,313.08
  6. Step 6: Final answer
    x = 205,940,066,502.10

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1.5x scale

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.