Home / 210,868,335.42-316,323,430.34-77,956,030.90

Finding the Fourth Proportional to 210,868,335.42, 316,323,430.34 and 77,956,030.90

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Solution

The fourth proportional to 210,868,335.42, 316,323,430.34 and 77,956,030.90 is: 116,941,782.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,868,335.42 : 316,323,430.34 = 77,956,030.90 : x
  2. Step 2: Convert to fraction form
    210,868,335.42/316,323,430.34 = 77,956,030.90/x
  3. Step 3: Cross multiply
    210,868,335.42x = 316,323,430.34 × 77,956,030.90
  4. Step 4: Simplify right side
    210,868,335.42x = 24,659,319,109,979,036
  5. Step 5: Solve for x
    x = 24,659,319,109,979,036/210,868,335.42
  6. Step 6: Final answer
    x = 116,941,782.94

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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.