Home / 772,061,068.40-1,065,439,278.96-442,099,980.32

Finding the Fourth Proportional to 772,061,068.40, 1,065,439,278.96 and 442,099,980.32

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Solution

The fourth proportional to 772,061,068.40, 1,065,439,278.96 and 442,099,980.32 is: 610,095,112.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,061,068.40 : 1,065,439,278.96 = 442,099,980.32 : x
  2. Step 2: Convert to fraction form
    772,061,068.40/1,065,439,278.96 = 442,099,980.32/x
  3. Step 3: Cross multiply
    772,061,068.40x = 1,065,439,278.96 × 442,099,980.32
  4. Step 4: Simplify right side
    772,061,068.40x = 471,030,684,260,371,008
  5. Step 5: Solve for x
    x = 471,030,684,260,371,008/772,061,068.40
  6. Step 6: Final answer
    x = 610,095,112.34

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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.