Home / 19,988,385,960.84-29,803,877,488.29-19,439,217,419.64

Finding the Fourth Proportional to 19,988,385,960.84, 29,803,877,488.29 and 19,439,217,419.64

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Solution

The fourth proportional to 19,988,385,960.84, 29,803,877,488.29 and 19,439,217,419.64 is: 28,985,034,388.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,988,385,960.84 : 29,803,877,488.29 = 19,439,217,419.64 : x
  2. Step 2: Convert to fraction form
    19,988,385,960.84/29,803,877,488.29 = 19,439,217,419.64/x
  3. Step 3: Cross multiply
    19,988,385,960.84x = 29,803,877,488.29 × 19,439,217,419.64
  4. Step 4: Simplify right side
    19,988,385,960.84x = 579,364,054,443,183,439,872
  5. Step 5: Solve for x
    x = 579,364,054,443,183,439,872/19,988,385,960.84
  6. Step 6: Final answer
    x = 28,985,034,388.38

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.