Home / 1,439,749,994.40-1,986,845,099.76-779,685,167.52

Finding the Fourth Proportional to 1,439,749,994.40, 1,986,845,099.76 and 779,685,167.52

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Solution

The fourth proportional to 1,439,749,994.40, 1,986,845,099.76 and 779,685,167.52 is: 1,075,960,173.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,439,749,994.40 : 1,986,845,099.76 = 779,685,167.52 : x
  2. Step 2: Convert to fraction form
    1,439,749,994.40/1,986,845,099.76 = 779,685,167.52/x
  3. Step 3: Cross multiply
    1,439,749,994.40x = 1,986,845,099.76 × 779,685,167.52
  4. Step 4: Simplify right side
    1,439,749,994.40x = 1,549,113,654,442,666,752
  5. Step 5: Solve for x
    x = 1,549,113,654,442,666,752/1,439,749,994.40
  6. Step 6: Final answer
    x = 1,075,960,173.97

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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.