Home / 142,088,254.40-213,132,381.60-87,562,407.80

Finding the Fourth Proportional to 142,088,254.40, 213,132,381.60 and 87,562,407.80

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Solution

The fourth proportional to 142,088,254.40, 213,132,381.60 and 87,562,407.80 is: 131,343,611.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,088,254.40 : 213,132,381.60 = 87,562,407.80 : x
  2. Step 2: Convert to fraction form
    142,088,254.40/213,132,381.60 = 87,562,407.80/x
  3. Step 3: Cross multiply
    142,088,254.40x = 213,132,381.60 × 87,562,407.80
  4. Step 4: Simplify right side
    142,088,254.40x = 18,662,384,513,044,416
  5. Step 5: Solve for x
    x = 18,662,384,513,044,416/142,088,254.40
  6. Step 6: Final answer
    x = 131,343,611.70

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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.