Home / 2,142,950,421.32-2,956,604,403.60-1,238,376,809.90

Finding the Fourth Proportional to 2,142,950,421.32, 2,956,604,403.60 and 1,238,376,809.90

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Solution

The fourth proportional to 2,142,950,421.32, 2,956,604,403.60 and 1,238,376,809.90 is: 1,708,574,446.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,142,950,421.32 : 2,956,604,403.60 = 1,238,376,809.90 : x
  2. Step 2: Convert to fraction form
    2,142,950,421.32/2,956,604,403.60 = 1,238,376,809.90/x
  3. Step 3: Cross multiply
    2,142,950,421.32x = 2,956,604,403.60 × 1,238,376,809.90
  4. Step 4: Simplify right side
    2,142,950,421.32x = 3,661,390,329,466,460,160
  5. Step 5: Solve for x
    x = 3,661,390,329,466,460,160/2,142,950,421.32
  6. Step 6: Final answer
    x = 1,708,574,446.26

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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.