Home / 262,286,199.10-393,402,337.71-87,390,343

Finding the Fourth Proportional to 262,286,199.10, 393,402,337.71 and 87,390,343

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Solution

The fourth proportional to 262,286,199.10, 393,402,337.71 and 87,390,343 is: 131,076,531.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,286,199.10 : 393,402,337.71 = 87,390,343 : x
  2. Step 2: Convert to fraction form
    262,286,199.10/393,402,337.71 = 87,390,343/x
  3. Step 3: Cross multiply
    262,286,199.10x = 393,402,337.71 × 87,390,343
  4. Step 4: Simplify right side
    262,286,199.10x = 34,379,565,229,478,732
  5. Step 5: Solve for x
    x = 34,379,565,229,478,732/262,286,199.10
  6. Step 6: Final answer
    x = 131,076,531.47

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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.