Home / 3,117,479,156.76-4,302,086,986.80-1,688,514,712.81

Finding the Fourth Proportional to 3,117,479,156.76, 4,302,086,986.80 and 1,688,514,712.81

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Solution

The fourth proportional to 3,117,479,156.76, 4,302,086,986.80 and 1,688,514,712.81 is: 2,330,131,753.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,117,479,156.76 : 4,302,086,986.80 = 1,688,514,712.81 : x
  2. Step 2: Convert to fraction form
    3,117,479,156.76/4,302,086,986.80 = 1,688,514,712.81/x
  3. Step 3: Cross multiply
    3,117,479,156.76x = 4,302,086,986.80 × 1,688,514,712.81
  4. Step 4: Simplify right side
    3,117,479,156.76x = 7,264,137,173,000,240,128
  5. Step 5: Solve for x
    x = 7,264,137,173,000,240,128/3,117,479,156.76
  6. Step 6: Final answer
    x = 2,330,131,753.17

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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.