Home / 65,344,421.40-98,016,632.10-42,501,643.80

Finding the Fourth Proportional to 65,344,421.40, 98,016,632.10 and 42,501,643.80

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Solution

The fourth proportional to 65,344,421.40, 98,016,632.10 and 42,501,643.80 is: 63,752,465.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,344,421.40 : 98,016,632.10 = 42,501,643.80 : x
  2. Step 2: Convert to fraction form
    65,344,421.40/98,016,632.10 = 42,501,643.80/x
  3. Step 3: Cross multiply
    65,344,421.40x = 98,016,632.10 × 42,501,643.80
  4. Step 4: Simplify right side
    65,344,421.40x = 4,165,867,983,989,845.50
  5. Step 5: Solve for x
    x = 4,165,867,983,989,845.50/65,344,421.40
  6. Step 6: Final answer
    x = 63,752,465.70

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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.