Home / 385,457,436.91-578,208,583.46-109,085,530.87

Finding the Fourth Proportional to 385,457,436.91, 578,208,583.46 and 109,085,530.87

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Solution

The fourth proportional to 385,457,436.91, 578,208,583.46 and 109,085,530.87 is: 163,634,643.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,457,436.91 : 578,208,583.46 = 109,085,530.87 : x
  2. Step 2: Convert to fraction form
    385,457,436.91/578,208,583.46 = 109,085,530.87/x
  3. Step 3: Cross multiply
    385,457,436.91x = 578,208,583.46 × 109,085,530.87
  4. Step 4: Simplify right side
    385,457,436.91x = 63,074,190,280,324,808
  5. Step 5: Solve for x
    x = 63,074,190,280,324,808/385,457,436.91
  6. Step 6: Final answer
    x = 163,634,643.52

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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.