Home / 1,005,646,878.70-1,387,913,506.83-609,158,234.74

Finding the Fourth Proportional to 1,005,646,878.70, 1,387,913,506.83 and 609,158,234.74

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Solution

The fourth proportional to 1,005,646,878.70, 1,387,913,506.83 and 609,158,234.74 is: 840,711,545.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,005,646,878.70 : 1,387,913,506.83 = 609,158,234.74 : x
  2. Step 2: Convert to fraction form
    1,005,646,878.70/1,387,913,506.83 = 609,158,234.74/x
  3. Step 3: Cross multiply
    1,005,646,878.70x = 1,387,913,506.83 × 609,158,234.74
  4. Step 4: Simplify right side
    1,005,646,878.70x = 845,458,941,792,365,696
  5. Step 5: Solve for x
    x = 845,458,941,792,365,696/1,005,646,878.70
  6. Step 6: Final answer
    x = 840,711,545.67

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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.