Home / 21,031,901.60-31,547,852.40-8,252,823.20

Finding the Fourth Proportional to 21,031,901.60, 31,547,852.40 and 8,252,823.20

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Solution

The fourth proportional to 21,031,901.60, 31,547,852.40 and 8,252,823.20 is: 12,379,234.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,031,901.60 : 31,547,852.40 = 8,252,823.20 : x
  2. Step 2: Convert to fraction form
    21,031,901.60/31,547,852.40 = 8,252,823.20/x
  3. Step 3: Cross multiply
    21,031,901.60x = 31,547,852.40 × 8,252,823.20
  4. Step 4: Simplify right side
    21,031,901.60x = 260,358,848,196,895.69
  5. Step 5: Solve for x
    x = 260,358,848,196,895.69/21,031,901.60
  6. Step 6: Final answer
    x = 12,379,234.80

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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.