Home / 977,105,312.80-1,465,657,969.20-931,755,680.80

Finding the Fourth Proportional to 977,105,312.80, 1,465,657,969.20 and 931,755,680.80

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Solution

The fourth proportional to 977,105,312.80, 1,465,657,969.20 and 931,755,680.80 is: 1,397,633,521.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,105,312.80 : 1,465,657,969.20 = 931,755,680.80 : x
  2. Step 2: Convert to fraction form
    977,105,312.80/1,465,657,969.20 = 931,755,680.80/x
  3. Step 3: Cross multiply
    977,105,312.80x = 1,465,657,969.20 × 931,755,680.80
  4. Step 4: Simplify right side
    977,105,312.80x = 1,365,635,138,911,891,456
  5. Step 5: Solve for x
    x = 1,365,635,138,911,891,456/977,105,312.80
  6. Step 6: Final answer
    x = 1,397,633,521.20

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Double scale
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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.