Home / 1,438,466,574.72-1,983,990,038.64-1,237,861,568.40

Finding the Fourth Proportional to 1,438,466,574.72, 1,983,990,038.64 and 1,237,861,568.40

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Solution

The fourth proportional to 1,438,466,574.72, 1,983,990,038.64 and 1,237,861,568.40 is: 1,707,307,673.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438,466,574.72 : 1,983,990,038.64 = 1,237,861,568.40 : x
  2. Step 2: Convert to fraction form
    1,438,466,574.72/1,983,990,038.64 = 1,237,861,568.40/x
  3. Step 3: Cross multiply
    1,438,466,574.72x = 1,983,990,038.64 × 1,237,861,568.40
  4. Step 4: Simplify right side
    1,438,466,574.72x = 2,455,905,020,920,887,296
  5. Step 5: Solve for x
    x = 2,455,905,020,920,887,296/1,438,466,574.72
  6. Step 6: Final answer
    x = 1,707,307,673.38

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1.5x scale

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.