Home / 42,768,410.10-64,026,643.95-40,276,979.70

Finding the Fourth Proportional to 42,768,410.10, 64,026,643.95 and 40,276,979.70

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Solution

The fourth proportional to 42,768,410.10, 64,026,643.95 and 40,276,979.70 is: 60,296,836.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,768,410.10 : 64,026,643.95 = 40,276,979.70 : x
  2. Step 2: Convert to fraction form
    42,768,410.10/64,026,643.95 = 40,276,979.70/x
  3. Step 3: Cross multiply
    42,768,410.10x = 64,026,643.95 × 40,276,979.70
  4. Step 4: Simplify right side
    42,768,410.10x = 2,578,799,838,633,278
  5. Step 5: Solve for x
    x = 2,578,799,838,633,278/42,768,410.10
  6. Step 6: Final answer
    x = 60,296,836.67

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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.