Home / 1,404,731,143.27-1,938,648,020.49-778,396,038.31

Finding the Fourth Proportional to 1,404,731,143.27, 1,938,648,020.49 and 778,396,038.31

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Solution

The fourth proportional to 1,404,731,143.27, 1,938,648,020.49 and 778,396,038.31 is: 1,074,252,497.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,404,731,143.27 : 1,938,648,020.49 = 778,396,038.31 : x
  2. Step 2: Convert to fraction form
    1,404,731,143.27/1,938,648,020.49 = 778,396,038.31/x
  3. Step 3: Cross multiply
    1,404,731,143.27x = 1,938,648,020.49 × 778,396,038.31
  4. Step 4: Simplify right side
    1,404,731,143.27x = 1,509,035,938,826,939,648
  5. Step 5: Solve for x
    x = 1,509,035,938,826,939,648/1,404,731,143.27
  6. Step 6: Final answer
    x = 1,074,252,497.40

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Double scale
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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.