Home / 2,912,191,810.23-4,018,842,435-1,574,078,509.20

Finding the Fourth Proportional to 2,912,191,810.23, 4,018,842,435 and 1,574,078,509.20

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Solution

The fourth proportional to 2,912,191,810.23, 4,018,842,435 and 1,574,078,509.20 is: 2,172,237,929.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,912,191,810.23 : 4,018,842,435 = 1,574,078,509.20 : x
  2. Step 2: Convert to fraction form
    2,912,191,810.23/4,018,842,435 = 1,574,078,509.20/x
  3. Step 3: Cross multiply
    2,912,191,810.23x = 4,018,842,435 × 1,574,078,509.20
  4. Step 4: Simplify right side
    2,912,191,810.23x = 6,325,973,508,794,498,048
  5. Step 5: Solve for x
    x = 6,325,973,508,794,498,048/2,912,191,810.23
  6. Step 6: Final answer
    x = 2,172,237,929.72

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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.