Home / 1,311,753,913.39-1,967,630,870.22-438,355,281.72

Finding the Fourth Proportional to 1,311,753,913.39, 1,967,630,870.22 and 438,355,281.72

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Solution

The fourth proportional to 1,311,753,913.39, 1,967,630,870.22 and 438,355,281.72 is: 657,532,922.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,311,753,913.39 : 1,967,630,870.22 = 438,355,281.72 : x
  2. Step 2: Convert to fraction form
    1,311,753,913.39/1,967,630,870.22 = 438,355,281.72/x
  3. Step 3: Cross multiply
    1,311,753,913.39x = 1,967,630,870.22 × 438,355,281.72
  4. Step 4: Simplify right side
    1,311,753,913.39x = 862,521,384,426,418,688
  5. Step 5: Solve for x
    x = 862,521,384,426,418,688/1,311,753,913.39
  6. Step 6: Final answer
    x = 657,532,922.62

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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.