Home / 1,434,988,575.84-1,980,284,214.96-774,938,834.40

Finding the Fourth Proportional to 1,434,988,575.84, 1,980,284,214.96 and 774,938,834.40

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Solution

The fourth proportional to 1,434,988,575.84, 1,980,284,214.96 and 774,938,834.40 is: 1,069,415,580.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,434,988,575.84 : 1,980,284,214.96 = 774,938,834.40 : x
  2. Step 2: Convert to fraction form
    1,434,988,575.84/1,980,284,214.96 = 774,938,834.40/x
  3. Step 3: Cross multiply
    1,434,988,575.84x = 1,980,284,214.96 × 774,938,834.40
  4. Step 4: Simplify right side
    1,434,988,575.84x = 1,534,599,141,321,821,440
  5. Step 5: Solve for x
    x = 1,534,599,141,321,821,440/1,434,988,575.84
  6. Step 6: Final answer
    x = 1,069,415,580.83

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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.