Home / 315,021,928.48-434,730,341.48-173,893,227.64

Finding the Fourth Proportional to 315,021,928.48, 434,730,341.48 and 173,893,227.64

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Solution

The fourth proportional to 315,021,928.48, 434,730,341.48 and 173,893,227.64 is: 239,972,698.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,021,928.48 : 434,730,341.48 = 173,893,227.64 : x
  2. Step 2: Convert to fraction form
    315,021,928.48/434,730,341.48 = 173,893,227.64/x
  3. Step 3: Cross multiply
    315,021,928.48x = 434,730,341.48 × 173,893,227.64
  4. Step 4: Simplify right side
    315,021,928.48x = 75,596,662,232,996,576
  5. Step 5: Solve for x
    x = 75,596,662,232,996,576/315,021,928.48
  6. Step 6: Final answer
    x = 239,972,698.40

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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.