Home / 30,789,770,148,438-42,493,525,414,008-18,289,549,575,861

Finding the Fourth Proportional to 30,789,770,148,438, 42,493,525,414,008 and 18,289,549,575,861

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Solution

The fourth proportional to 30,789,770,148,438, 42,493,525,414,008 and 18,289,549,575,861 is: 25,241,742,174,942.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,789,770,148,438 : 42,493,525,414,008 = 18,289,549,575,861 : x
  2. Step 2: Convert to fraction form
    30,789,770,148,438/42,493,525,414,008 = 18,289,549,575,861/x
  3. Step 3: Cross multiply
    30,789,770,148,438x = 42,493,525,414,008 × 18,289,549,575,861
  4. Step 4: Simplify right side
    30,789,770,148,438x = 777,187,439,712,608,624,306,028,544
  5. Step 5: Solve for x
    x = 777,187,439,712,608,624,306,028,544/30,789,770,148,438
  6. Step 6: Final answer
    x = 25,241,742,174,942.36

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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.