Home / 1,119,710,369.78-1,679,502,776.62-343,353,899.20

Finding the Fourth Proportional to 1,119,710,369.78, 1,679,502,776.62 and 343,353,899.20

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Solution

The fourth proportional to 1,119,710,369.78, 1,679,502,776.62 and 343,353,899.20 is: 515,011,598.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,710,369.78 : 1,679,502,776.62 = 343,353,899.20 : x
  2. Step 2: Convert to fraction form
    1,119,710,369.78/1,679,502,776.62 = 343,353,899.20/x
  3. Step 3: Cross multiply
    1,119,710,369.78x = 1,679,502,776.62 × 343,353,899.20
  4. Step 4: Simplify right side
    1,119,710,369.78x = 576,663,827,069,703,552
  5. Step 5: Solve for x
    x = 576,663,827,069,703,552/1,119,710,369.78
  6. Step 6: Final answer
    x = 515,011,598.21

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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.