Home / 18,210,872,489-25,123,308,667.08-12,191,317,303.28

Finding the Fourth Proportional to 18,210,872,489, 25,123,308,667.08 and 12,191,317,303.28

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Solution

The fourth proportional to 18,210,872,489, 25,123,308,667.08 and 12,191,317,303.28 is: 16,818,866,194.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,210,872,489 : 25,123,308,667.08 = 12,191,317,303.28 : x
  2. Step 2: Convert to fraction form
    18,210,872,489/25,123,308,667.08 = 12,191,317,303.28/x
  3. Step 3: Cross multiply
    18,210,872,489x = 25,123,308,667.08 × 12,191,317,303.28
  4. Step 4: Simplify right side
    18,210,872,489x = 306,286,227,668,616,806,400
  5. Step 5: Solve for x
    x = 306,286,227,668,616,806,400/18,210,872,489
  6. Step 6: Final answer
    x = 16,818,866,194.01

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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.