Home / 260,249,642.69-390,360,094.86-190,291,561.50

Finding the Fourth Proportional to 260,249,642.69, 390,360,094.86 and 190,291,561.50

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Solution

The fourth proportional to 260,249,642.69, 390,360,094.86 and 190,291,561.50 is: 285,426,835.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,249,642.69 : 390,360,094.86 = 190,291,561.50 : x
  2. Step 2: Convert to fraction form
    260,249,642.69/390,360,094.86 = 190,291,561.50/x
  3. Step 3: Cross multiply
    260,249,642.69x = 390,360,094.86 × 190,291,561.50
  4. Step 4: Simplify right side
    260,249,642.69x = 74,282,231,998,197,520
  5. Step 5: Solve for x
    x = 74,282,231,998,197,520/260,249,642.69
  6. Step 6: Final answer
    x = 285,426,835.68

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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.