Home / 1,505,432,188.78-2,077,374,622.15-870,393,424.33

Finding the Fourth Proportional to 1,505,432,188.78, 2,077,374,622.15 and 870,393,424.33

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Solution

The fourth proportional to 1,505,432,188.78, 2,077,374,622.15 and 870,393,424.33 is: 1,201,072,505.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,505,432,188.78 : 2,077,374,622.15 = 870,393,424.33 : x
  2. Step 2: Convert to fraction form
    1,505,432,188.78/2,077,374,622.15 = 870,393,424.33/x
  3. Step 3: Cross multiply
    1,505,432,188.78x = 2,077,374,622.15 × 870,393,424.33
  4. Step 4: Simplify right side
    1,505,432,188.78x = 1,808,133,210,990,582,528
  5. Step 5: Solve for x
    x = 1,808,133,210,990,582,528/1,505,432,188.78
  6. Step 6: Final answer
    x = 1,201,072,505.60

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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.