Home / 1,372,180,728.42-1,893,637,437.57-745,689,513.78

Finding the Fourth Proportional to 1,372,180,728.42, 1,893,637,437.57 and 745,689,513.78

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Solution

The fourth proportional to 1,372,180,728.42, 1,893,637,437.57 and 745,689,513.78 is: 1,029,066,762.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,372,180,728.42 : 1,893,637,437.57 = 745,689,513.78 : x
  2. Step 2: Convert to fraction form
    1,372,180,728.42/1,893,637,437.57 = 745,689,513.78/x
  3. Step 3: Cross multiply
    1,372,180,728.42x = 1,893,637,437.57 × 745,689,513.78
  4. Step 4: Simplify right side
    1,372,180,728.42x = 1,412,065,580,097,178,368
  5. Step 5: Solve for x
    x = 1,412,065,580,097,178,368/1,372,180,728.42
  6. Step 6: Final answer
    x = 1,029,066,762.75

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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.