Home / 1,049,301,621.76-1,574,497,152.78-427,972,689.40

Finding the Fourth Proportional to 1,049,301,621.76, 1,574,497,152.78 and 427,972,689.40

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Solution

The fourth proportional to 1,049,301,621.76, 1,574,497,152.78 and 427,972,689.40 is: 642,181,206.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,049,301,621.76 : 1,574,497,152.78 = 427,972,689.40 : x
  2. Step 2: Convert to fraction form
    1,049,301,621.76/1,574,497,152.78 = 427,972,689.40/x
  3. Step 3: Cross multiply
    1,049,301,621.76x = 1,574,497,152.78 × 427,972,689.40
  4. Step 4: Simplify right side
    1,049,301,621.76x = 673,841,780,927,899,264
  5. Step 5: Solve for x
    x = 673,841,780,927,899,264/1,049,301,621.76
  6. Step 6: Final answer
    x = 642,181,206.01

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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.