Home / 642,418,528.95-886,459,192.25-360,095,812.11

Finding the Fourth Proportional to 642,418,528.95, 886,459,192.25 and 360,095,812.11

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Solution

The fourth proportional to 642,418,528.95, 886,459,192.25 and 360,095,812.11 is: 496,888,287.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,418,528.95 : 886,459,192.25 = 360,095,812.11 : x
  2. Step 2: Convert to fraction form
    642,418,528.95/886,459,192.25 = 360,095,812.11/x
  3. Step 3: Cross multiply
    642,418,528.95x = 886,459,192.25 × 360,095,812.11
  4. Step 4: Simplify right side
    642,418,528.95x = 319,210,242,733,837,888
  5. Step 5: Solve for x
    x = 319,210,242,733,837,888/642,418,528.95
  6. Step 6: Final answer
    x = 496,888,287.54

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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.