Home / 30,789,770,148,453-42,493,525,414,021-18,289,549,575,875

Finding the Fourth Proportional to 30,789,770,148,453, 42,493,525,414,021 and 18,289,549,575,875

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Solution

The fourth proportional to 30,789,770,148,453, 42,493,525,414,021 and 18,289,549,575,875 is: 25,241,742,174,957.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,789,770,148,453 : 42,493,525,414,021 = 18,289,549,575,875 : x
  2. Step 2: Convert to fraction form
    30,789,770,148,453/42,493,525,414,021 = 18,289,549,575,875/x
  3. Step 3: Cross multiply
    30,789,770,148,453x = 42,493,525,414,021 × 18,289,549,575,875
  4. Step 4: Simplify right side
    30,789,770,148,453x = 777,187,439,713,441,366,925,115,392
  5. Step 5: Solve for x
    x = 777,187,439,713,441,366,925,115,392/30,789,770,148,453
  6. Step 6: Final answer
    x = 25,241,742,174,957.11

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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.