Home / 839,723,083.40-1,159,048,342.50-487,412,577.56

Finding the Fourth Proportional to 839,723,083.40, 1,159,048,342.50 and 487,412,577.56

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Solution

The fourth proportional to 839,723,083.40, 1,159,048,342.50 and 487,412,577.56 is: 672,763,142.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,723,083.40 : 1,159,048,342.50 = 487,412,577.56 : x
  2. Step 2: Convert to fraction form
    839,723,083.40/1,159,048,342.50 = 487,412,577.56/x
  3. Step 3: Cross multiply
    839,723,083.40x = 1,159,048,342.50 × 487,412,577.56
  4. Step 4: Simplify right side
    839,723,083.40x = 564,934,740,134,570,688
  5. Step 5: Solve for x
    x = 564,934,740,134,570,688/839,723,083.40
  6. Step 6: Final answer
    x = 672,763,142.16

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1.5x scale

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.