Home / 1,206,447,339.60-1,809,671,009.40-430,968,632.40

Finding the Fourth Proportional to 1,206,447,339.60, 1,809,671,009.40 and 430,968,632.40

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Solution

The fourth proportional to 1,206,447,339.60, 1,809,671,009.40 and 430,968,632.40 is: 646,452,948.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,206,447,339.60 : 1,809,671,009.40 = 430,968,632.40 : x
  2. Step 2: Convert to fraction form
    1,206,447,339.60/1,809,671,009.40 = 430,968,632.40/x
  3. Step 3: Cross multiply
    1,206,447,339.60x = 1,809,671,009.40 × 430,968,632.40
  4. Step 4: Simplify right side
    1,206,447,339.60x = 779,911,440,015,045,504
  5. Step 5: Solve for x
    x = 779,911,440,015,045,504/1,206,447,339.60
  6. Step 6: Final answer
    x = 646,452,948.60

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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.