Home / 1,315,186,523.21-1,814,942,953.02-712,342,148.43

Finding the Fourth Proportional to 1,315,186,523.21, 1,814,942,953.02 and 712,342,148.43

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Solution

The fourth proportional to 1,315,186,523.21, 1,814,942,953.02 and 712,342,148.43 is: 983,024,338.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,186,523.21 : 1,814,942,953.02 = 712,342,148.43 : x
  2. Step 2: Convert to fraction form
    1,315,186,523.21/1,814,942,953.02 = 712,342,148.43/x
  3. Step 3: Cross multiply
    1,315,186,523.21x = 1,814,942,953.02 × 712,342,148.43
  4. Step 4: Simplify right side
    1,315,186,523.21x = 1,292,860,362,432,155,136
  5. Step 5: Solve for x
    x = 1,292,860,362,432,155,136/1,315,186,523.21
  6. Step 6: Final answer
    x = 983,024,338.84

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.