Home / 253,047,330,674.78-349,215,384,403.01-138,866,037,780.29

Finding the Fourth Proportional to 253,047,330,674.78, 349,215,384,403.01 and 138,866,037,780.29

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Solution

The fourth proportional to 253,047,330,674.78, 349,215,384,403.01 and 138,866,037,780.29 is: 191,640,657,242.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,047,330,674.78 : 349,215,384,403.01 = 138,866,037,780.29 : x
  2. Step 2: Convert to fraction form
    253,047,330,674.78/349,215,384,403.01 = 138,866,037,780.29/x
  3. Step 3: Cross multiply
    253,047,330,674.78x = 349,215,384,403.01 × 138,866,037,780.29
  4. Step 4: Simplify right side
    253,047,330,674.78x = 48,494,156,763,966,889,525,248
  5. Step 5: Solve for x
    x = 48,494,156,763,966,889,525,248/253,047,330,674.78
  6. Step 6: Final answer
    x = 191,640,657,242.47

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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.