Home / 922,127,949.60-1,272,532,765.77-498,742,083.60

Finding the Fourth Proportional to 922,127,949.60, 1,272,532,765.77 and 498,742,083.60

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Solution

The fourth proportional to 922,127,949.60, 1,272,532,765.77 and 498,742,083.60 is: 688,262,017.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,127,949.60 : 1,272,532,765.77 = 498,742,083.60 : x
  2. Step 2: Convert to fraction form
    922,127,949.60/1,272,532,765.77 = 498,742,083.60/x
  3. Step 3: Cross multiply
    922,127,949.60x = 1,272,532,765.77 × 498,742,083.60
  4. Step 4: Simplify right side
    922,127,949.60x = 634,665,643,049,400,576
  5. Step 5: Solve for x
    x = 634,665,643,049,400,576/922,127,949.60
  6. Step 6: Final answer
    x = 688,262,017.57

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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.