Home / 12,127,671,768.60-18,191,507,652.90-5,913,638,443.80

Finding the Fourth Proportional to 12,127,671,768.60, 18,191,507,652.90 and 5,913,638,443.80

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Solution

The fourth proportional to 12,127,671,768.60, 18,191,507,652.90 and 5,913,638,443.80 is: 8,870,457,665.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,127,671,768.60 : 18,191,507,652.90 = 5,913,638,443.80 : x
  2. Step 2: Convert to fraction form
    12,127,671,768.60/18,191,507,652.90 = 5,913,638,443.80/x
  3. Step 3: Cross multiply
    12,127,671,768.60x = 18,191,507,652.90 × 5,913,638,443.80
  4. Step 4: Simplify right side
    12,127,671,768.60x = 107,577,999,006,871,355,392
  5. Step 5: Solve for x
    x = 107,577,999,006,871,355,392/12,127,671,768.60
  6. Step 6: Final answer
    x = 8,870,457,665.70

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Double scale
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1.5x scale

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.