Home / 448,688,646.90-619,293,644.76-263,109,449.70

Finding the Fourth Proportional to 448,688,646.90, 619,293,644.76 and 263,109,449.70

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Solution

The fourth proportional to 448,688,646.90, 619,293,644.76 and 263,109,449.70 is: 363,151,622.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,688,646.90 : 619,293,644.76 = 263,109,449.70 : x
  2. Step 2: Convert to fraction form
    448,688,646.90/619,293,644.76 = 263,109,449.70/x
  3. Step 3: Cross multiply
    448,688,646.90x = 619,293,644.76 × 263,109,449.70
  4. Step 4: Simplify right side
    448,688,646.90x = 162,942,010,075,510,880
  5. Step 5: Solve for x
    x = 162,942,010,075,510,880/448,688,646.90
  6. Step 6: Final answer
    x = 363,151,622.40

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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.