Home / 289,702,907.10-434,554,360.65-257,958,164.70

Finding the Fourth Proportional to 289,702,907.10, 434,554,360.65 and 257,958,164.70

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Solution

The fourth proportional to 289,702,907.10, 434,554,360.65 and 257,958,164.70 is: 386,937,247.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,702,907.10 : 434,554,360.65 = 257,958,164.70 : x
  2. Step 2: Convert to fraction form
    289,702,907.10/434,554,360.65 = 257,958,164.70/x
  3. Step 3: Cross multiply
    289,702,907.10x = 434,554,360.65 × 257,958,164.70
  4. Step 4: Simplify right side
    289,702,907.10x = 112,096,845,335,655,888
  5. Step 5: Solve for x
    x = 112,096,845,335,655,888/289,702,907.10
  6. Step 6: Final answer
    x = 386,937,247.05

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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.