Home / 28,678,260,596,580-39,576,118,860,742-15,509,251,914,389

Finding the Fourth Proportional to 28,678,260,596,580, 39,576,118,860,742 and 15,509,251,914,389

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Solution

The fourth proportional to 28,678,260,596,580, 39,576,118,860,742 and 15,509,251,914,389 is: 21,402,832,125,678.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,678,260,596,580 : 39,576,118,860,742 = 15,509,251,914,389 : x
  2. Step 2: Convert to fraction form
    28,678,260,596,580/39,576,118,860,742 = 15,509,251,914,389/x
  3. Step 3: Cross multiply
    28,678,260,596,580x = 39,576,118,860,742 × 15,509,251,914,389
  4. Step 4: Simplify right side
    28,678,260,596,580x = 613,795,997,205,049,470,586,191,872
  5. Step 5: Solve for x
    x = 613,795,997,205,049,470,586,191,872/28,678,260,596,580
  6. Step 6: Final answer
    x = 21,402,832,125,678.05

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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.