Home / 742,155,529.68-1,024,186,966.20-407,658,981.84

Finding the Fourth Proportional to 742,155,529.68, 1,024,186,966.20 and 407,658,981.84

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Solution

The fourth proportional to 742,155,529.68, 1,024,186,966.20 and 407,658,981.84 is: 562,576,170.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,155,529.68 : 1,024,186,966.20 = 407,658,981.84 : x
  2. Step 2: Convert to fraction form
    742,155,529.68/1,024,186,966.20 = 407,658,981.84/x
  3. Step 3: Cross multiply
    742,155,529.68x = 1,024,186,966.20 × 407,658,981.84
  4. Step 4: Simplify right side
    742,155,529.68x = 417,519,015,854,890,496
  5. Step 5: Solve for x
    x = 417,519,015,854,890,496/742,155,529.68
  6. Step 6: Final answer
    x = 562,576,170.57

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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.