Home / 1,120,140,090.72-1,680,210,136.08-302,251,079.52

Finding the Fourth Proportional to 1,120,140,090.72, 1,680,210,136.08 and 302,251,079.52

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Solution

The fourth proportional to 1,120,140,090.72, 1,680,210,136.08 and 302,251,079.52 is: 453,376,619.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,140,090.72 : 1,680,210,136.08 = 302,251,079.52 : x
  2. Step 2: Convert to fraction form
    1,120,140,090.72/1,680,210,136.08 = 302,251,079.52/x
  3. Step 3: Cross multiply
    1,120,140,090.72x = 1,680,210,136.08 × 302,251,079.52
  4. Step 4: Simplify right side
    1,120,140,090.72x = 507,845,327,450,626,048
  5. Step 5: Solve for x
    x = 507,845,327,450,626,048/1,120,140,090.72
  6. Step 6: Final answer
    x = 453,376,619.28

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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.