Home / 742,378,678.64-1,113,839,582.18-698,521,468.61

Finding the Fourth Proportional to 742,378,678.64, 1,113,839,582.18 and 698,521,468.61

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Solution

The fourth proportional to 742,378,678.64, 1,113,839,582.18 and 698,521,468.61 is: 1,048,037,724.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,378,678.64 : 1,113,839,582.18 = 698,521,468.61 : x
  2. Step 2: Convert to fraction form
    742,378,678.64/1,113,839,582.18 = 698,521,468.61/x
  3. Step 3: Cross multiply
    742,378,678.64x = 1,113,839,582.18 × 698,521,468.61
  4. Step 4: Simplify right side
    742,378,678.64x = 778,040,860,736,829,824
  5. Step 5: Solve for x
    x = 778,040,860,736,829,824/742,378,678.64
  6. Step 6: Final answer
    x = 1,048,037,724.05

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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.