Home / 1,210,220,925.76-1,670,875,994.25-987,733,317.20

Finding the Fourth Proportional to 1,210,220,925.76, 1,670,875,994.25 and 987,733,317.20

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Solution

The fourth proportional to 1,210,220,925.76, 1,670,875,994.25 and 987,733,317.20 is: 1,363,701,331.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,220,925.76 : 1,670,875,994.25 = 987,733,317.20 : x
  2. Step 2: Convert to fraction form
    1,210,220,925.76/1,670,875,994.25 = 987,733,317.20/x
  3. Step 3: Cross multiply
    1,210,220,925.76x = 1,670,875,994.25 × 987,733,317.20
  4. Step 4: Simplify right side
    1,210,220,925.76x = 1,650,379,888,425,462,016
  5. Step 5: Solve for x
    x = 1,650,379,888,425,462,016/1,210,220,925.76
  6. Step 6: Final answer
    x = 1,363,701,331.97

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Double scale
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1.5x scale

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.