Home / 198,162,685,399.95-297,122,380,019.85-77,009,779,370.49

Finding the Fourth Proportional to 198,162,685,399.95, 297,122,380,019.85 and 77,009,779,370.49

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Solution

The fourth proportional to 198,162,685,399.95, 297,122,380,019.85 and 77,009,779,370.49 is: 115,467,394,303.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,162,685,399.95 : 297,122,380,019.85 = 77,009,779,370.49 : x
  2. Step 2: Convert to fraction form
    198,162,685,399.95/297,122,380,019.85 = 77,009,779,370.49/x
  3. Step 3: Cross multiply
    198,162,685,399.95x = 297,122,380,019.85 × 77,009,779,370.49
  4. Step 4: Simplify right side
    198,162,685,399.95x = 22,881,328,931,363,532,832,768
  5. Step 5: Solve for x
    x = 22,881,328,931,363,532,832,768/198,162,685,399.95
  6. Step 6: Final answer
    x = 115,467,394,303.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.