Home / 142,814,559,147.32-197,078,143,431.08-77,709,242,117.05

Finding the Fourth Proportional to 142,814,559,147.32, 197,078,143,431.08 and 77,709,242,117.05

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Solution

The fourth proportional to 142,814,559,147.32, 197,078,143,431.08 and 77,709,242,117.05 is: 107,235,517,550.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,814,559,147.32 : 197,078,143,431.08 = 77,709,242,117.05 : x
  2. Step 2: Convert to fraction form
    142,814,559,147.32/197,078,143,431.08 = 77,709,242,117.05/x
  3. Step 3: Cross multiply
    142,814,559,147.32x = 197,078,143,431.08 × 77,709,242,117.05
  4. Step 4: Simplify right side
    142,814,559,147.32x = 15,314,793,163,864,108,171,264
  5. Step 5: Solve for x
    x = 15,314,793,163,864,108,171,264/142,814,559,147.32
  6. Step 6: Final answer
    x = 107,235,517,550.18

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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.