Home / 2,989,610,001.60-4,484,391,382.80-778,815,441.60

Finding the Fourth Proportional to 2,989,610,001.60, 4,484,391,382.80 and 778,815,441.60

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Solution

The fourth proportional to 2,989,610,001.60, 4,484,391,382.80 and 778,815,441.60 is: 1,168,217,009.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,989,610,001.60 : 4,484,391,382.80 = 778,815,441.60 : x
  2. Step 2: Convert to fraction form
    2,989,610,001.60/4,484,391,382.80 = 778,815,441.60/x
  3. Step 3: Cross multiply
    2,989,610,001.60x = 4,484,391,382.80 × 778,815,441.60
  4. Step 4: Simplify right side
    2,989,610,001.60x = 3,492,513,255,102,617,088
  5. Step 5: Solve for x
    x = 3,492,513,255,102,617,088/2,989,610,001.60
  6. Step 6: Final answer
    x = 1,168,217,009.32

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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.