Home / 1,323,163,407.60-1,981,721,802.60-778,967,823.60

Finding the Fourth Proportional to 1,323,163,407.60, 1,981,721,802.60 and 778,967,823.60

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Solution

The fourth proportional to 1,323,163,407.60, 1,981,721,802.60 and 778,967,823.60 is: 1,166,671,864.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,323,163,407.60 : 1,981,721,802.60 = 778,967,823.60 : x
  2. Step 2: Convert to fraction form
    1,323,163,407.60/1,981,721,802.60 = 778,967,823.60/x
  3. Step 3: Cross multiply
    1,323,163,407.60x = 1,981,721,802.60 × 778,967,823.60
  4. Step 4: Simplify right side
    1,323,163,407.60x = 1,543,697,519,551,990,784
  5. Step 5: Solve for x
    x = 1,543,697,519,551,990,784/1,323,163,407.60
  6. Step 6: Final answer
    x = 1,166,671,864.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.