Home / 30,678,854.06-42,358,222.14-19,081,630.46

Finding the Fourth Proportional to 30,678,854.06, 42,358,222.14 and 19,081,630.46

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Solution

The fourth proportional to 30,678,854.06, 42,358,222.14 and 19,081,630.46 is: 26,345,962.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,678,854.06 : 42,358,222.14 = 19,081,630.46 : x
  2. Step 2: Convert to fraction form
    30,678,854.06/42,358,222.14 = 19,081,630.46/x
  3. Step 3: Cross multiply
    30,678,854.06x = 42,358,222.14 × 19,081,630.46
  4. Step 4: Simplify right side
    30,678,854.06x = 808,263,941,818,070.38
  5. Step 5: Solve for x
    x = 808,263,941,818,070.38/30,678,854.06
  6. Step 6: Final answer
    x = 26,345,962.60

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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.