Home / 1,987,435,251.28-2,742,768,503.90-1,140,655,803.76

Finding the Fourth Proportional to 1,987,435,251.28, 2,742,768,503.90 and 1,140,655,803.76

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Solution

The fourth proportional to 1,987,435,251.28, 2,742,768,503.90 and 1,140,655,803.76 is: 1,574,166,912.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,987,435,251.28 : 2,742,768,503.90 = 1,140,655,803.76 : x
  2. Step 2: Convert to fraction form
    1,987,435,251.28/2,742,768,503.90 = 1,140,655,803.76/x
  3. Step 3: Cross multiply
    1,987,435,251.28x = 2,742,768,503.90 × 1,140,655,803.76
  4. Step 4: Simplify right side
    1,987,435,251.28x = 3,128,554,812,343,667,200
  5. Step 5: Solve for x
    x = 3,128,554,812,343,667,200/1,987,435,251.28
  6. Step 6: Final answer
    x = 1,574,166,912.02

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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.