Finding the Fourth Proportional to 130,506,749.91, 180,048,342.20 and 74,722,356.95
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Solution
The fourth proportional to 130,506,749.91, 180,048,342.20 and 74,722,356.95 is: 103,087,667.90
Step by Step Solution
- Step 1: Write the proportion equation
130,506,749.91 : 180,048,342.20 = 74,722,356.95 : x - Step 2: Convert to fraction form
130,506,749.91/180,048,342.20 = 74,722,356.95/x - Step 3: Cross multiply
130,506,749.91x = 180,048,342.20 × 74,722,356.95 - Step 4: Simplify right side
130,506,749.91x = 13,453,636,492,850,292 - Step 5: Solve for x
x = 13,453,636,492,850,292/130,506,749.91 - Step 6: Final answer
x = 103,087,667.90
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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.