Home / 28,990,931.25-40,006,465.74-15,938,095.13

Finding the Fourth Proportional to 28,990,931.25, 40,006,465.74 and 15,938,095.13

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Solution

The fourth proportional to 28,990,931.25, 40,006,465.74 and 15,938,095.13 is: 21,994,010.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,990,931.25 : 40,006,465.74 = 15,938,095.13 : x
  2. Step 2: Convert to fraction form
    28,990,931.25/40,006,465.74 = 15,938,095.13/x
  3. Step 3: Cross multiply
    28,990,931.25x = 40,006,465.74 × 15,938,095.13
  4. Step 4: Simplify right side
    28,990,931.25x = 637,626,856,779,205.88
  5. Step 5: Solve for x
    x = 637,626,856,779,205.88/28,990,931.25
  6. Step 6: Final answer
    x = 21,994,010.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.