Home / 287,805,345.70-431,611,345.86-93,671,103.86

Finding the Fourth Proportional to 287,805,345.70, 431,611,345.86 and 93,671,103.86

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Solution

The fourth proportional to 287,805,345.70, 431,611,345.86 and 93,671,103.86 is: 140,475,192.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,805,345.70 : 431,611,345.86 = 93,671,103.86 : x
  2. Step 2: Convert to fraction form
    287,805,345.70/431,611,345.86 = 93,671,103.86/x
  3. Step 3: Cross multiply
    287,805,345.70x = 431,611,345.86 × 93,671,103.86
  4. Step 4: Simplify right side
    287,805,345.70x = 40,429,511,205,206,440
  5. Step 5: Solve for x
    x = 40,429,511,205,206,440/287,805,345.70
  6. Step 6: Final answer
    x = 140,475,192.03

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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.