Home / 315,561,878.10-435,467,038.32-176,333,783.94

Finding the Fourth Proportional to 315,561,878.10, 435,467,038.32 and 176,333,783.94

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Solution

The fourth proportional to 315,561,878.10, 435,467,038.32 and 176,333,783.94 is: 243,335,953.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,561,878.10 : 435,467,038.32 = 176,333,783.94 : x
  2. Step 2: Convert to fraction form
    315,561,878.10/435,467,038.32 = 176,333,783.94/x
  3. Step 3: Cross multiply
    315,561,878.10x = 435,467,038.32 × 176,333,783.94
  4. Step 4: Simplify right side
    315,561,878.10x = 76,787,550,648,317,584
  5. Step 5: Solve for x
    x = 76,787,550,648,317,584/315,561,878.10
  6. Step 6: Final answer
    x = 243,335,953.98

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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.