Home / 78,779,030.40-118,112,558.40-35,668,886.40

Finding the Fourth Proportional to 78,779,030.40, 118,112,558.40 and 35,668,886.40

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Solution

The fourth proportional to 78,779,030.40, 118,112,558.40 and 35,668,886.40 is: 53,477,980.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,779,030.40 : 118,112,558.40 = 35,668,886.40 : x
  2. Step 2: Convert to fraction form
    78,779,030.40/118,112,558.40 = 35,668,886.40/x
  3. Step 3: Cross multiply
    78,779,030.40x = 118,112,558.40 × 35,668,886.40
  4. Step 4: Simplify right side
    78,779,030.40x = 4,212,943,427,982,966
  5. Step 5: Solve for x
    x = 4,212,943,427,982,966/78,779,030.40
  6. Step 6: Final answer
    x = 53,477,980.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.