Home / 1,398,768,124.24-1,931,171,156.70-890,417,667.37

Finding the Fourth Proportional to 1,398,768,124.24, 1,931,171,156.70 and 890,417,667.37

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Solution

The fourth proportional to 1,398,768,124.24, 1,931,171,156.70 and 890,417,667.37 is: 1,229,330,928.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,398,768,124.24 : 1,931,171,156.70 = 890,417,667.37 : x
  2. Step 2: Convert to fraction form
    1,398,768,124.24/1,931,171,156.70 = 890,417,667.37/x
  3. Step 3: Cross multiply
    1,398,768,124.24x = 1,931,171,156.70 × 890,417,667.37
  4. Step 4: Simplify right side
    1,398,768,124.24x = 1,719,548,916,641,038,848
  5. Step 5: Solve for x
    x = 1,719,548,916,641,038,848/1,398,768,124.24
  6. Step 6: Final answer
    x = 1,229,330,928.29

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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.