Home / 21,263,018,461.60-31,894,527,692.40-12,555,889,117.60

Finding the Fourth Proportional to 21,263,018,461.60, 31,894,527,692.40 and 12,555,889,117.60

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Solution

The fourth proportional to 21,263,018,461.60, 31,894,527,692.40 and 12,555,889,117.60 is: 18,833,833,676.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,263,018,461.60 : 31,894,527,692.40 = 12,555,889,117.60 : x
  2. Step 2: Convert to fraction form
    21,263,018,461.60/31,894,527,692.40 = 12,555,889,117.60/x
  3. Step 3: Cross multiply
    21,263,018,461.60x = 31,894,527,692.40 × 12,555,889,117.60
  4. Step 4: Simplify right side
    21,263,018,461.60x = 400,464,153,163,997,052,928
  5. Step 5: Solve for x
    x = 400,464,153,163,997,052,928/21,263,018,461.60
  6. Step 6: Final answer
    x = 18,833,833,676.40

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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.