Finding the Fourth Proportional to 103,249,831.29, 142,480,402.88 and 56,205,925.53
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Solution
The fourth proportional to 103,249,831.29, 142,480,402.88 and 56,205,925.53 is: 77,561,801.44
Step by Step Solution
- Step 1: Write the proportion equation
103,249,831.29 : 142,480,402.88 = 56,205,925.53 : x - Step 2: Convert to fraction form
103,249,831.29/142,480,402.88 = 56,205,925.53/x - Step 3: Cross multiply
103,249,831.29x = 142,480,402.88 × 56,205,925.53 - Step 4: Simplify right side
103,249,831.29x = 8,008,242,913,476,648 - Step 5: Solve for x
x = 8,008,242,913,476,648/103,249,831.29 - Step 6: Final answer
x = 77,561,801.44
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.