Home / 12,705,510.64-19,056,690.10-7,521,205

Finding the Fourth Proportional to 12,705,510.64, 19,056,690.10 and 7,521,205

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Solution

The fourth proportional to 12,705,510.64, 19,056,690.10 and 7,521,205 is: 11,280,874.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,705,510.64 : 19,056,690.10 = 7,521,205 : x
  2. Step 2: Convert to fraction form
    12,705,510.64/19,056,690.10 = 7,521,205/x
  3. Step 3: Cross multiply
    12,705,510.64x = 19,056,690.10 × 7,521,205
  4. Step 4: Simplify right side
    12,705,510.64x = 143,329,272,863,570.50
  5. Step 5: Solve for x
    x = 143,329,272,863,570.50/12,705,510.64
  6. Step 6: Final answer
    x = 11,280,874.65

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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.