Home / 1,280,079,946,840.40-1,920,232,798,981.70-361,157,328,322.70

Finding the Fourth Proportional to 1,280,079,946,840.40, 1,920,232,798,981.70 and 361,157,328,322.70

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Solution

The fourth proportional to 1,280,079,946,840.40, 1,920,232,798,981.70 and 361,157,328,322.70 is: 541,767,839,695.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,079,946,840.40 : 1,920,232,798,981.70 = 361,157,328,322.70 : x
  2. Step 2: Convert to fraction form
    1,280,079,946,840.40/1,920,232,798,981.70 = 361,157,328,322.70/x
  3. Step 3: Cross multiply
    1,280,079,946,840.40x = 1,920,232,798,981.70 × 361,157,328,322.70
  4. Step 4: Simplify right side
    1,280,079,946,840.40x = 693,506,147,437,850,965,049,344
  5. Step 5: Solve for x
    x = 693,506,147,437,850,965,049,344/1,280,079,946,840.40
  6. Step 6: Final answer
    x = 541,767,839,695.97

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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.