Home / 142,176,031.40-213,264,047.10-117,942,321.80

Finding the Fourth Proportional to 142,176,031.40, 213,264,047.10 and 117,942,321.80

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Solution

The fourth proportional to 142,176,031.40, 213,264,047.10 and 117,942,321.80 is: 176,913,482.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,176,031.40 : 213,264,047.10 = 117,942,321.80 : x
  2. Step 2: Convert to fraction form
    142,176,031.40/213,264,047.10 = 117,942,321.80/x
  3. Step 3: Cross multiply
    142,176,031.40x = 213,264,047.10 × 117,942,321.80
  4. Step 4: Simplify right side
    142,176,031.40x = 25,152,856,871,438,556
  5. Step 5: Solve for x
    x = 25,152,856,871,438,556/142,176,031.40
  6. Step 6: Final answer
    x = 176,913,482.70

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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.