Home / 1,913,925,945.40-2,870,888,918.10-686,934,964.60

Finding the Fourth Proportional to 1,913,925,945.40, 2,870,888,918.10 and 686,934,964.60

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Solution

The fourth proportional to 1,913,925,945.40, 2,870,888,918.10 and 686,934,964.60 is: 1,030,402,446.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,913,925,945.40 : 2,870,888,918.10 = 686,934,964.60 : x
  2. Step 2: Convert to fraction form
    1,913,925,945.40/2,870,888,918.10 = 686,934,964.60/x
  3. Step 3: Cross multiply
    1,913,925,945.40x = 2,870,888,918.10 × 686,934,964.60
  4. Step 4: Simplify right side
    1,913,925,945.40x = 1,972,113,977,325,555,712
  5. Step 5: Solve for x
    x = 1,972,113,977,325,555,712/1,913,925,945.40
  6. Step 6: Final answer
    x = 1,030,402,446.90

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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.