Home / 420,739,695.36-580,678,457.04-242,119,914.48

Finding the Fourth Proportional to 420,739,695.36, 580,678,457.04 and 242,119,914.48

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Solution

The fourth proportional to 420,739,695.36, 580,678,457.04 and 242,119,914.48 is: 334,158,673.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,739,695.36 : 580,678,457.04 = 242,119,914.48 : x
  2. Step 2: Convert to fraction form
    420,739,695.36/580,678,457.04 = 242,119,914.48/x
  3. Step 3: Cross multiply
    420,739,695.36x = 580,678,457.04 × 242,119,914.48
  4. Step 4: Simplify right side
    420,739,695.36x = 140,593,818,358,903,136
  5. Step 5: Solve for x
    x = 140,593,818,358,903,136/420,739,695.36
  6. Step 6: Final answer
    x = 334,158,673.19

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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.