Home / 28,405,000.90-42,607,501.35-19,712,988.10

Finding the Fourth Proportional to 28,405,000.90, 42,607,501.35 and 19,712,988.10

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Solution

The fourth proportional to 28,405,000.90, 42,607,501.35 and 19,712,988.10 is: 29,569,482.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,405,000.90 : 42,607,501.35 = 19,712,988.10 : x
  2. Step 2: Convert to fraction form
    28,405,000.90/42,607,501.35 = 19,712,988.10/x
  3. Step 3: Cross multiply
    28,405,000.90x = 42,607,501.35 × 19,712,988.10
  4. Step 4: Simplify right side
    28,405,000.90x = 839,921,167,083,284
  5. Step 5: Solve for x
    x = 839,921,167,083,284/28,405,000.90
  6. Step 6: Final answer
    x = 29,569,482.15

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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.