Home / 385,163,980,643.55-577,243,383,693.24-215,176,703,374.10

Finding the Fourth Proportional to 385,163,980,643.55, 577,243,383,693.24 and 215,176,703,374.10

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Solution

The fourth proportional to 385,163,980,643.55, 577,243,383,693.24 and 215,176,703,374.10 is: 322,484,278,358.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,163,980,643.55 : 577,243,383,693.24 = 215,176,703,374.10 : x
  2. Step 2: Convert to fraction form
    385,163,980,643.55/577,243,383,693.24 = 215,176,703,374.10/x
  3. Step 3: Cross multiply
    385,163,980,643.55x = 577,243,383,693.24 × 215,176,703,374.10
  4. Step 4: Simplify right side
    385,163,980,643.55x = 124,209,328,347,622,095,716,352
  5. Step 5: Solve for x
    x = 124,209,328,347,622,095,716,352/385,163,980,643.55
  6. Step 6: Final answer
    x = 322,484,278,358.76

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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.