Home / 21,143,724,878.10-31,729,559,787.12-9,954,798,869.10

Finding the Fourth Proportional to 21,143,724,878.10, 31,729,559,787.12 and 9,954,798,869.10

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Solution

The fourth proportional to 21,143,724,878.10, 31,729,559,787.12 and 9,954,798,869.10 is: 14,938,776,762.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,143,724,878.10 : 31,729,559,787.12 = 9,954,798,869.10 : x
  2. Step 2: Convert to fraction form
    21,143,724,878.10/31,729,559,787.12 = 9,954,798,869.10/x
  3. Step 3: Cross multiply
    21,143,724,878.10x = 31,729,559,787.12 × 9,954,798,869.10
  4. Step 4: Simplify right side
    21,143,724,878.10x = 315,861,385,885,989,928,960
  5. Step 5: Solve for x
    x = 315,861,385,885,989,928,960/21,143,724,878.10
  6. Step 6: Final answer
    x = 14,938,776,762.70

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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.