Finding the Fourth Proportional to 153,110,161.28, 211,292,356.74 and 87,031,064.36
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Solution
The fourth proportional to 153,110,161.28, 211,292,356.74 and 87,031,064.36 is: 120,103,058.77
Step by Step Solution
- Step 1: Write the proportion equation
153,110,161.28 : 211,292,356.74 = 87,031,064.36 : x - Step 2: Convert to fraction form
153,110,161.28/211,292,356.74 = 87,031,064.36/x - Step 3: Cross multiply
153,110,161.28x = 211,292,356.74 × 87,031,064.36 - Step 4: Simplify right side
153,110,161.28x = 18,388,998,698,215,020 - Step 5: Solve for x
x = 18,388,998,698,215,020/153,110,161.28 - Step 6: Final answer
x = 120,103,058.77
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.