Home / 158,547,374.51-218,794,929.40-87,993,637.32

Finding the Fourth Proportional to 158,547,374.51, 218,794,929.40 and 87,993,637.32

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Solution

The fourth proportional to 158,547,374.51, 218,794,929.40 and 87,993,637.32 is: 121,430,971.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,547,374.51 : 218,794,929.40 = 87,993,637.32 : x
  2. Step 2: Convert to fraction form
    158,547,374.51/218,794,929.40 = 87,993,637.32/x
  3. Step 3: Cross multiply
    158,547,374.51x = 218,794,929.40 × 87,993,637.32
  4. Step 4: Simplify right side
    158,547,374.51x = 19,252,561,664,038,140
  5. Step 5: Solve for x
    x = 19,252,561,664,038,140/158,547,374.51
  6. Step 6: Final answer
    x = 121,430,971.18

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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.