Home / 1,404,731,140.76-1,938,648,017.04-778,396,035.80

Finding the Fourth Proportional to 1,404,731,140.76, 1,938,648,017.04 and 778,396,035.80

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Solution

The fourth proportional to 1,404,731,140.76, 1,938,648,017.04 and 778,396,035.80 is: 1,074,252,493.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,404,731,140.76 : 1,938,648,017.04 = 778,396,035.80 : x
  2. Step 2: Convert to fraction form
    1,404,731,140.76/1,938,648,017.04 = 778,396,035.80/x
  3. Step 3: Cross multiply
    1,404,731,140.76x = 1,938,648,017.04 × 778,396,035.80
  4. Step 4: Simplify right side
    1,404,731,140.76x = 1,509,035,931,277,433,344
  5. Step 5: Solve for x
    x = 1,509,035,931,277,433,344/1,404,731,140.76
  6. Step 6: Final answer
    x = 1,074,252,493.94

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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.