Home / 210,939,938,837.76-291,122,071,019.67-125,301,242,931.06

Finding the Fourth Proportional to 210,939,938,837.76, 291,122,071,019.67 and 125,301,242,931.06

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Solution

The fourth proportional to 210,939,938,837.76, 291,122,071,019.67 and 125,301,242,931.06 is: 172,930,539,111.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,939,938,837.76 : 291,122,071,019.67 = 125,301,242,931.06 : x
  2. Step 2: Convert to fraction form
    210,939,938,837.76/291,122,071,019.67 = 125,301,242,931.06/x
  3. Step 3: Cross multiply
    210,939,938,837.76x = 291,122,071,019.67 × 125,301,242,931.06
  4. Step 4: Simplify right side
    210,939,938,837.76x = 36,477,957,343,428,971,855,872
  5. Step 5: Solve for x
    x = 36,477,957,343,428,971,855,872/210,939,938,837.76
  6. Step 6: Final answer
    x = 172,930,539,111.82

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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.