Home / 1,211,507,192.72-1,671,879,929.16-654,590,239.76

Finding the Fourth Proportional to 1,211,507,192.72, 1,671,879,929.16 and 654,590,239.76

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Solution

The fourth proportional to 1,211,507,192.72, 1,671,879,929.16 and 654,590,239.76 is: 903,334,532.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,507,192.72 : 1,671,879,929.16 = 654,590,239.76 : x
  2. Step 2: Convert to fraction form
    1,211,507,192.72/1,671,879,929.16 = 654,590,239.76/x
  3. Step 3: Cross multiply
    1,211,507,192.72x = 1,671,879,929.16 × 654,590,239.76
  4. Step 4: Simplify right side
    1,211,507,192.72x = 1,094,396,283,678,776,192
  5. Step 5: Solve for x
    x = 1,094,396,283,678,776,192/1,211,507,192.72
  6. Step 6: Final answer
    x = 903,334,532.60

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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.