Home / 65,820,574.63-90,788,656.68-42,328,811.74

Finding the Fourth Proportional to 65,820,574.63, 90,788,656.68 and 42,328,811.74

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Solution

The fourth proportional to 65,820,574.63, 90,788,656.68 and 42,328,811.74 is: 58,385,633.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,820,574.63 : 90,788,656.68 = 42,328,811.74 : x
  2. Step 2: Convert to fraction form
    65,820,574.63/90,788,656.68 = 42,328,811.74/x
  3. Step 3: Cross multiply
    65,820,574.63x = 90,788,656.68 × 42,328,811.74
  4. Step 4: Simplify right side
    65,820,574.63x = 3,842,975,956,735,214
  5. Step 5: Solve for x
    x = 3,842,975,956,735,214/65,820,574.63
  6. Step 6: Final answer
    x = 58,385,633.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.