Home / 315,905,222.10-435,971,286.45-176,688,850.26

Finding the Fourth Proportional to 315,905,222.10, 435,971,286.45 and 176,688,850.26

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Solution

The fourth proportional to 315,905,222.10, 435,971,286.45 and 176,688,850.26 is: 243,842,962.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,905,222.10 : 435,971,286.45 = 176,688,850.26 : x
  2. Step 2: Convert to fraction form
    315,905,222.10/435,971,286.45 = 176,688,850.26/x
  3. Step 3: Cross multiply
    315,905,222.10x = 435,971,286.45 × 176,688,850.26
  4. Step 4: Simplify right side
    315,905,222.10x = 77,031,265,349,223,616
  5. Step 5: Solve for x
    x = 77,031,265,349,223,616/315,905,222.10
  6. Step 6: Final answer
    x = 243,842,962.89

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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.