Home / 326,619,005.40-489,928,508.10-288,355,253.40

Finding the Fourth Proportional to 326,619,005.40, 489,928,508.10 and 288,355,253.40

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Solution

The fourth proportional to 326,619,005.40, 489,928,508.10 and 288,355,253.40 is: 432,532,880.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,619,005.40 : 489,928,508.10 = 288,355,253.40 : x
  2. Step 2: Convert to fraction form
    326,619,005.40/489,928,508.10 = 288,355,253.40/x
  3. Step 3: Cross multiply
    326,619,005.40x = 489,928,508.10 × 288,355,253.40
  4. Step 4: Simplify right side
    326,619,005.40x = 141,273,459,101,059,440
  5. Step 5: Solve for x
    x = 141,273,459,101,059,440/326,619,005.40
  6. Step 6: Final answer
    x = 432,532,880.10

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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.