Home / 56,692,700.78-78,194,157.42-42,754,643.34

Finding the Fourth Proportional to 56,692,700.78, 78,194,157.42 and 42,754,643.34

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Solution

The fourth proportional to 56,692,700.78, 78,194,157.42 and 42,754,643.34 is: 58,969,907.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,692,700.78 : 78,194,157.42 = 42,754,643.34 : x
  2. Step 2: Convert to fraction form
    56,692,700.78/78,194,157.42 = 42,754,643.34/x
  3. Step 3: Cross multiply
    56,692,700.78x = 78,194,157.42 × 42,754,643.34
  4. Step 4: Simplify right side
    56,692,700.78x = 3,343,163,311,603,585
  5. Step 5: Solve for x
    x = 3,343,163,311,603,585/56,692,700.78
  6. Step 6: Final answer
    x = 58,969,907.34

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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.