Home / 86,458,818.36-129,688,067.64-28,166,426.76

Finding the Fourth Proportional to 86,458,818.36, 129,688,067.64 and 28,166,426.76

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Solution

The fourth proportional to 86,458,818.36, 129,688,067.64 and 28,166,426.76 is: 42,249,588.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,458,818.36 : 129,688,067.64 = 28,166,426.76 : x
  2. Step 2: Convert to fraction form
    86,458,818.36/129,688,067.64 = 28,166,426.76/x
  3. Step 3: Cross multiply
    86,458,818.36x = 129,688,067.64 × 28,166,426.76
  4. Step 4: Simplify right side
    86,458,818.36x = 3,652,849,458,827,986.50
  5. Step 5: Solve for x
    x = 3,652,849,458,827,986.50/86,458,818.36
  6. Step 6: Final answer
    x = 42,249,588.05

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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.