Home / 21,431,868,667.35-32,140,920,561.89-7,070,348,782.32

Finding the Fourth Proportional to 21,431,868,667.35, 32,140,920,561.89 and 7,070,348,782.32

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Solution

The fourth proportional to 21,431,868,667.35, 32,140,920,561.89 and 7,070,348,782.32 is: 10,603,252,664.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,431,868,667.35 : 32,140,920,561.89 = 7,070,348,782.32 : x
  2. Step 2: Convert to fraction form
    21,431,868,667.35/32,140,920,561.89 = 7,070,348,782.32/x
  3. Step 3: Cross multiply
    21,431,868,667.35x = 32,140,920,561.89 × 7,070,348,782.32
  4. Step 4: Simplify right side
    21,431,868,667.35x = 227,247,518,557,367,435,264
  5. Step 5: Solve for x
    x = 227,247,518,557,367,435,264/21,431,868,667.35
  6. Step 6: Final answer
    x = 10,603,252,664.74

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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.