Home / 1,141,478,388-1,575,187,459.92-646,444,640.16

Finding the Fourth Proportional to 1,141,478,388, 1,575,187,459.92 and 646,444,640.16

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Solution

The fourth proportional to 1,141,478,388, 1,575,187,459.92 and 646,444,640.16 is: 892,063,749.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,141,478,388 : 1,575,187,459.92 = 646,444,640.16 : x
  2. Step 2: Convert to fraction form
    1,141,478,388/1,575,187,459.92 = 646,444,640.16/x
  3. Step 3: Cross multiply
    1,141,478,388x = 1,575,187,459.92 × 646,444,640.16
  4. Step 4: Simplify right side
    1,141,478,388x = 1,018,271,490,712,528,768
  5. Step 5: Solve for x
    x = 1,018,271,490,712,528,768/1,141,478,388
  6. Step 6: Final answer
    x = 892,063,749.45

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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.