Home / 12,608,779,140.08-18,917,945,466.80-7,570,154,281.46

Finding the Fourth Proportional to 12,608,779,140.08, 18,917,945,466.80 and 7,570,154,281.46

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Solution

The fourth proportional to 12,608,779,140.08, 18,917,945,466.80 and 7,570,154,281.46 is: 11,358,099,327.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,608,779,140.08 : 18,917,945,466.80 = 7,570,154,281.46 : x
  2. Step 2: Convert to fraction form
    12,608,779,140.08/18,917,945,466.80 = 7,570,154,281.46/x
  3. Step 3: Cross multiply
    12,608,779,140.08x = 18,917,945,466.80 × 7,570,154,281.46
  4. Step 4: Simplify right side
    12,608,779,140.08x = 143,211,765,871,922,806,784
  5. Step 5: Solve for x
    x = 143,211,765,871,922,806,784/12,608,779,140.08
  6. Step 6: Final answer
    x = 11,358,099,327.53

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Double scale
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1.5x scale

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.