Home / 1,990,657,173.60-2,985,985,760.40-971,441,301.60

Finding the Fourth Proportional to 1,990,657,173.60, 2,985,985,760.40 and 971,441,301.60

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Solution

The fourth proportional to 1,990,657,173.60, 2,985,985,760.40 and 971,441,301.60 is: 1,457,161,952.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,990,657,173.60 : 2,985,985,760.40 = 971,441,301.60 : x
  2. Step 2: Convert to fraction form
    1,990,657,173.60/2,985,985,760.40 = 971,441,301.60/x
  3. Step 3: Cross multiply
    1,990,657,173.60x = 2,985,985,760.40 × 971,441,301.60
  4. Step 4: Simplify right side
    1,990,657,173.60x = 2,900,709,893,642,041,856
  5. Step 5: Solve for x
    x = 2,900,709,893,642,041,856/1,990,657,173.60
  6. Step 6: Final answer
    x = 1,457,161,952.40

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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.