Home / 12,709,285,972.83-19,066,686,814.58-3,865,894,985.21

Finding the Fourth Proportional to 12,709,285,972.83, 19,066,686,814.58 and 3,865,894,985.21

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Solution

The fourth proportional to 12,709,285,972.83, 19,066,686,814.58 and 3,865,894,985.21 is: 5,799,681,358.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,709,285,972.83 : 19,066,686,814.58 = 3,865,894,985.21 : x
  2. Step 2: Convert to fraction form
    12,709,285,972.83/19,066,686,814.58 = 3,865,894,985.21/x
  3. Step 3: Cross multiply
    12,709,285,972.83x = 19,066,686,814.58 × 3,865,894,985.21
  4. Step 4: Simplify right side
    12,709,285,972.83x = 73,709,808,941,054,459,904
  5. Step 5: Solve for x
    x = 73,709,808,941,054,459,904/12,709,285,972.83
  6. Step 6: Final answer
    x = 5,799,681,358.86

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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.