Home / 1,280,079,946,827.90-1,920,232,798,962.90-361,157,328,310.20

Finding the Fourth Proportional to 1,280,079,946,827.90, 1,920,232,798,962.90 and 361,157,328,310.20

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Solution

The fourth proportional to 1,280,079,946,827.90, 1,920,232,798,962.90 and 361,157,328,310.20 is: 541,767,839,677.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,079,946,827.90 : 1,920,232,798,962.90 = 361,157,328,310.20 : x
  2. Step 2: Convert to fraction form
    1,280,079,946,827.90/1,920,232,798,962.90 = 361,157,328,310.20/x
  3. Step 3: Cross multiply
    1,280,079,946,827.90x = 1,920,232,798,962.90 × 361,157,328,310.20
  4. Step 4: Simplify right side
    1,280,079,946,827.90x = 693,506,147,407,058,331,238,400
  5. Step 5: Solve for x
    x = 693,506,147,407,058,331,238,400/1,280,079,946,827.90
  6. Step 6: Final answer
    x = 541,767,839,677.20

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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.