Home / 18,588,178,478.98-27,890,501,510.94-9,742,915,218.70

Finding the Fourth Proportional to 18,588,178,478.98, 27,890,501,510.94 and 9,742,915,218.70

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Solution

The fourth proportional to 18,588,178,478.98, 27,890,501,510.94 and 9,742,915,218.70 is: 14,618,688,535.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,588,178,478.98 : 27,890,501,510.94 = 9,742,915,218.70 : x
  2. Step 2: Convert to fraction form
    18,588,178,478.98/27,890,501,510.94 = 9,742,915,218.70/x
  3. Step 3: Cross multiply
    18,588,178,478.98x = 27,890,501,510.94 × 9,742,915,218.70
  4. Step 4: Simplify right side
    18,588,178,478.98x = 271,734,791,628,112,691,200
  5. Step 5: Solve for x
    x = 271,734,791,628,112,691,200/18,588,178,478.98
  6. Step 6: Final answer
    x = 14,618,688,535.59

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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.