Home / 65,426,421.40-98,139,632.10-64,978,523.80

Finding the Fourth Proportional to 65,426,421.40, 98,139,632.10 and 64,978,523.80

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Solution

The fourth proportional to 65,426,421.40, 98,139,632.10 and 64,978,523.80 is: 97,467,785.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,426,421.40 : 98,139,632.10 = 64,978,523.80 : x
  2. Step 2: Convert to fraction form
    65,426,421.40/98,139,632.10 = 64,978,523.80/x
  3. Step 3: Cross multiply
    65,426,421.40x = 98,139,632.10 × 64,978,523.80
  4. Step 4: Simplify right side
    65,426,421.40x = 6,376,968,420,133,093
  5. Step 5: Solve for x
    x = 6,376,968,420,133,093/65,426,421.40
  6. Step 6: Final answer
    x = 97,467,785.70

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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.