Home / 498,752,644.62-688,249,068.30-275,721,025.53

Finding the Fourth Proportional to 498,752,644.62, 688,249,068.30 and 275,721,025.53

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Solution

The fourth proportional to 498,752,644.62, 688,249,068.30 and 275,721,025.53 is: 380,478,662.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,752,644.62 : 688,249,068.30 = 275,721,025.53 : x
  2. Step 2: Convert to fraction form
    498,752,644.62/688,249,068.30 = 275,721,025.53/x
  3. Step 3: Cross multiply
    498,752,644.62x = 688,249,068.30 × 275,721,025.53
  4. Step 4: Simplify right side
    498,752,644.62x = 189,764,738,931,742,976
  5. Step 5: Solve for x
    x = 189,764,738,931,742,976/498,752,644.62
  6. Step 6: Final answer
    x = 380,478,662.08

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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.