Home / 1,302,201,031.40-1,955,569,028.70-689,980,999.40

Finding the Fourth Proportional to 1,302,201,031.40, 1,955,569,028.70 and 689,980,999.40

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Solution

The fourth proportional to 1,302,201,031.40, 1,955,569,028.70 and 689,980,999.40 is: 1,036,172,941.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,302,201,031.40 : 1,955,569,028.70 = 689,980,999.40 : x
  2. Step 2: Convert to fraction form
    1,302,201,031.40/1,955,569,028.70 = 689,980,999.40/x
  3. Step 3: Cross multiply
    1,302,201,031.40x = 1,955,569,028.70 × 689,980,999.40
  4. Step 4: Simplify right side
    1,302,201,031.40x = 1,349,305,472,818,113,280
  5. Step 5: Solve for x
    x = 1,349,305,472,818,113,280/1,302,201,031.40
  6. Step 6: Final answer
    x = 1,036,172,941.26

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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.