Home / 210,020,921.12-315,031,381.68-56,666,977.58

Finding the Fourth Proportional to 210,020,921.12, 315,031,381.68 and 56,666,977.58

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Solution

The fourth proportional to 210,020,921.12, 315,031,381.68 and 56,666,977.58 is: 85,000,466.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,020,921.12 : 315,031,381.68 = 56,666,977.58 : x
  2. Step 2: Convert to fraction form
    210,020,921.12/315,031,381.68 = 56,666,977.58/x
  3. Step 3: Cross multiply
    210,020,921.12x = 315,031,381.68 × 56,666,977.58
  4. Step 4: Simplify right side
    210,020,921.12x = 17,851,876,242,656,982
  5. Step 5: Solve for x
    x = 17,851,876,242,656,982/210,020,921.12
  6. Step 6: Final answer
    x = 85,000,466.37

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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.