Home / 1,388,921,289.88-1,915,839,535-824,006,221.06

Finding the Fourth Proportional to 1,388,921,289.88, 1,915,839,535 and 824,006,221.06

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Solution

The fourth proportional to 1,388,921,289.88, 1,915,839,535 and 824,006,221.06 is: 1,136,611,345.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,388,921,289.88 : 1,915,839,535 = 824,006,221.06 : x
  2. Step 2: Convert to fraction form
    1,388,921,289.88/1,915,839,535 = 824,006,221.06/x
  3. Step 3: Cross multiply
    1,388,921,289.88x = 1,915,839,535 × 824,006,221.06
  4. Step 4: Simplify right side
    1,388,921,289.88x = 1,578,663,695,392,697,600
  5. Step 5: Solve for x
    x = 1,578,663,695,392,697,600/1,388,921,289.88
  6. Step 6: Final answer
    x = 1,136,611,345.00

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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.