Finding the Fourth Proportional to 157,208,243.08, 216,948,216.70 and 90,221,859.59
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Solution
The fourth proportional to 157,208,243.08, 216,948,216.70 and 90,221,859.59 is: 124,506,649.03
Step by Step Solution
- Step 1: Write the proportion equation
157,208,243.08 : 216,948,216.70 = 90,221,859.59 : x - Step 2: Convert to fraction form
157,208,243.08/216,948,216.70 = 90,221,859.59/x - Step 3: Cross multiply
157,208,243.08x = 216,948,216.70 × 90,221,859.59 - Step 4: Simplify right side
157,208,243.08x = 19,573,471,545,408,292 - Step 5: Solve for x
x = 19,573,471,545,408,292/157,208,243.08 - Step 6: Final answer
x = 124,506,649.03
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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.