Home / 98,013,623.20-147,020,434.80-87,432,042.40

Finding the Fourth Proportional to 98,013,623.20, 147,020,434.80 and 87,432,042.40

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Solution

The fourth proportional to 98,013,623.20, 147,020,434.80 and 87,432,042.40 is: 131,148,063.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,013,623.20 : 147,020,434.80 = 87,432,042.40 : x
  2. Step 2: Convert to fraction form
    98,013,623.20/147,020,434.80 = 87,432,042.40/x
  3. Step 3: Cross multiply
    98,013,623.20x = 147,020,434.80 × 87,432,042.40
  4. Step 4: Simplify right side
    98,013,623.20x = 12,854,296,889,100,038
  5. Step 5: Solve for x
    x = 12,854,296,889,100,038/98,013,623.20
  6. Step 6: Final answer
    x = 131,148,063.60

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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.