Home / 30,736,456.48-42,421,557.90-18,347,188.96

Finding the Fourth Proportional to 30,736,456.48, 42,421,557.90 and 18,347,188.96

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Solution

The fourth proportional to 30,736,456.48, 42,421,557.90 and 18,347,188.96 is: 25,322,253.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,736,456.48 : 42,421,557.90 = 18,347,188.96 : x
  2. Step 2: Convert to fraction form
    30,736,456.48/42,421,557.90 = 18,347,188.96/x
  3. Step 3: Cross multiply
    30,736,456.48x = 42,421,557.90 × 18,347,188.96
  4. Step 4: Simplify right side
    30,736,456.48x = 778,316,338,768,880.75
  5. Step 5: Solve for x
    x = 778,316,338,768,880.75/30,736,456.48
  6. Step 6: Final answer
    x = 25,322,253.37

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1.5x scale

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.