Home / 990,697,264.74-1,487,122,719.47-400,893,523.31

Finding the Fourth Proportional to 990,697,264.74, 1,487,122,719.47 and 400,893,523.31

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Solution

The fourth proportional to 990,697,264.74, 1,487,122,719.47 and 400,893,523.31 is: 601,776,029.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,697,264.74 : 1,487,122,719.47 = 400,893,523.31 : x
  2. Step 2: Convert to fraction form
    990,697,264.74/1,487,122,719.47 = 400,893,523.31/x
  3. Step 3: Cross multiply
    990,697,264.74x = 1,487,122,719.47 × 400,893,523.31
  4. Step 4: Simplify right side
    990,697,264.74x = 596,177,866,598,663,808
  5. Step 5: Solve for x
    x = 596,177,866,598,663,808/990,697,264.74
  6. Step 6: Final answer
    x = 601,776,029.69

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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.