Home / 1,913,925,963.90-2,870,888,945.85-686,934,983.10

Finding the Fourth Proportional to 1,913,925,963.90, 2,870,888,945.85 and 686,934,983.10

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Solution

The fourth proportional to 1,913,925,963.90, 2,870,888,945.85 and 686,934,983.10 is: 1,030,402,474.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,913,925,963.90 : 2,870,888,945.85 = 686,934,983.10 : x
  2. Step 2: Convert to fraction form
    1,913,925,963.90/2,870,888,945.85 = 686,934,983.10/x
  3. Step 3: Cross multiply
    1,913,925,963.90x = 2,870,888,945.85 × 686,934,983.10
  4. Step 4: Simplify right side
    1,913,925,963.90x = 1,972,114,049,499,446,528
  5. Step 5: Solve for x
    x = 1,972,114,049,499,446,528/1,913,925,963.90
  6. Step 6: Final answer
    x = 1,030,402,474.65

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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.