Home / 1,021,887,312.89-1,410,205,109.58-551,988,841.43

Finding the Fourth Proportional to 1,021,887,312.89, 1,410,205,109.58 and 551,988,841.43

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Solution

The fourth proportional to 1,021,887,312.89, 1,410,205,109.58 and 551,988,841.43 is: 761,744,934.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,021,887,312.89 : 1,410,205,109.58 = 551,988,841.43 : x
  2. Step 2: Convert to fraction form
    1,021,887,312.89/1,410,205,109.58 = 551,988,841.43/x
  3. Step 3: Cross multiply
    1,021,887,312.89x = 1,410,205,109.58 × 551,988,841.43
  4. Step 4: Simplify right side
    1,021,887,312.89x = 778,417,484,619,255,808
  5. Step 5: Solve for x
    x = 778,417,484,619,255,808/1,021,887,312.89
  6. Step 6: Final answer
    x = 761,744,934.89

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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.