Home / 315,905,223.10-435,971,287.83-176,688,851.26

Finding the Fourth Proportional to 315,905,223.10, 435,971,287.83 and 176,688,851.26

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Solution

The fourth proportional to 315,905,223.10, 435,971,287.83 and 176,688,851.26 is: 243,842,964.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,905,223.10 : 435,971,287.83 = 176,688,851.26 : x
  2. Step 2: Convert to fraction form
    315,905,223.10/435,971,287.83 = 176,688,851.26/x
  3. Step 3: Cross multiply
    315,905,223.10x = 435,971,287.83 × 176,688,851.26
  4. Step 4: Simplify right side
    315,905,223.10x = 77,031,266,029,025,504
  5. Step 5: Solve for x
    x = 77,031,266,029,025,504/315,905,223.10
  6. Step 6: Final answer
    x = 243,842,964.27

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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.